Tacting is a verbal operant where an individual labels an object action or property in their environment It is uniquely characterized by being evoked by a nonverbal discriminative stimulus SD the presence of the item and reinforced by a generalized conditioned reinforcer GCR not the specific item being named Lets analyze the options Option 1 Depriving then delivering a ball This describes a mand Manding is evoked by a motivating operation deprivation and reinforced by the specific item or event being requested Option 2 Presenting a ball providing a GCR This accurately describes tact training The nonverbal SD the ball itself evokes the response ball and a generalized conditioned reinforcer eg praise a token that can be exchanged for various items is provided not the ball itself This ensures the response is under the control of the nonverbal stimulus and not an MO Option 3 Asking What do you want and giving a ball This is also a mand as the question What do you want functions as a verbal SD for a mand and the reinforcement is the specific item requested which is directly tied to a motivating operation Option 4 Prompting after another person says I have a ball This describes an echoic or intraverbal as the clients response ball is evoked by a verbal SD I have a ball Reinforcement with the ball itself also moves it away from a pure tact Therefore option B is the only procedure that correctly aligns with the definition and training principles of tacting