This question requires an understanding of different experimental designs and their practical implications especially when faced with realworld constraints Hollys situation involves evaluating the effect of an intervention reinforcement system on a single target behavior number of ads created across multiple individuals her team members and she has significant time and resource limitations due to her overwhelming workload Lets analyze the options A Multiple Baseline Across Behaviors Design This design is used when an intervention is applied sequentially to different behaviors of a single individual or to different behaviors of multiple individuals In Hollys case she is focusing on only one behavior ad creation not multiple distinct behaviors Therefore this option is incorrect B Multiple Baseline Across Subjects Design This is a strong contender because it is indeed used to evaluate a single intervention across the same behavior for multiple individuals subjects The intervention is introduced sequentially to each subject after their baseline performance has stabilized However a traditional multiple baseline design requires continuous data collection during the baseline phase for all subjects until the intervention is introduced Given Hollys overwhelming workload and the need to start this week continuous baseline data collection for multiple team members might be impractical and resourceintensive for her C Multiple Probe Across Subjects Design This design is the most appropriate and practical choice for Holly The multiple probe design is a variation of the multiple baseline design particularly useful when continuous data collection during baseline is impractical or unnecessary such as when behavior change is irreversible or when resources are limited In a multiple probe design data are collected intermittently probed during baseline phases meaning Holly wouldnt need to collect data every single day for every team member She could for instance take baseline data on Monday then perhaps again on Friday before implementing the intervention for that team member This significantly reduces the data collection burden during baseline while still demonstrating experimental control through staggered introduction of the intervention This aligns perfectly with Hollys need to start quickly and manage an overwhelming workload D WithdrawalReversal Design This design involves introducing an intervention withdrawing it and then reintroducing it ABAB While effective for demonstrating functional control for a single subject applying a withdrawal design to multiple subjects individually would be highly timeconsuming Furthermore if the reinforcement system is effective withdrawing it could be ethically questionable if its a desirable behavior and would certainly be less efficient for simultaneously evaluating the intervention across an entire team compared to a multiple probe design It also requires the behavior to be reversible which is not always the case Therefore considering Hollys constraints of an overwhelming workload a short timeline and the need to evaluate across multiple subjects for a single behavior the Multiple Probe Across Subjects Design offers the best balance of experimental rigor and practical feasibility