What does putting on the sweater, even though it isn’t hers, reveal about Rachel? She sticks up for herself when she knows she is right.
She will do what she is told, especially when facing conflict.
She can be talked into liking something that she does not like.

the answer is option a.

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.