In the United States, what percentage of children are cared for by someone else, in addition to the mother?

In which of the following scenarios is Henry, age 9, most likely to experience guilt?

A) He accidentally knocks his friend over while running on the playground. B) He breaks his mother's favorite glass while trying to help her clean the dishes. C) He forgets to clean up his toys before leaving for school. D) He peeks at the answers of his classmate during a spelling quiz.

Each time Baby Masha sucks on her bottle, she receives a sweet-tasting liquid. When baby Masha sucks on a pacifier, she is met with a sour taste, which causes her to purse her lips and stop sucking entirely. The sour taste is a(n)

A) unconditioned response. B) conditioned response. C) reinforcer. D) punisher.