which is true about a response chain? group of answer choices in a response chain, a sequence of behaviors must occur in a specific order, with the primary reinforcer delivered after each response in the sequence. the behaviors of a response chain will continue if the primary reinforcement is eliminated. each stimulus in the middle of a response chain serves two functions: it is a primary reinforcer for the previous response and a discriminative stimulus for the next response of the chain. all of the others are false quizlet