PART B: Which detail from the text best supports the answer to Part A?

A)“We know that deciding to be generous or cooperating with others activates an area of the brain called the striatum. Interestingly, this area responds to things we find rewarding,”

B)“Doing a kind act to make someone who is sad feel better can also make us feel good – partly because we feel the same relief they do and partly because we are putting something right.”

C)“For example, an animal-lover could rescue a bird, an art-lover could donate to a gallery or a retired teacher could volunteer at an after-school group.”

D)“Work on the psychology of kindness shows that one out of several possible motivations is reciprocity, the returning of a favor.”