If Valerie Purchases Ankle Socks at $5 and Gets 25

If Valerie purchases ankle socks at $5 and gets 25 units of marginal utility from the last unit, and bandanas at $3 and gets 12 units of marginal utility from the last bandana purchased, she

A) is maximizing total utility and does not want to change her consumption of ankle socks or bandanas.
B) wants to consume more ankle socks and fewer bandanas.
C) wants to consume more bandanas and fewer ankle socks.
D) wants to consume less of both ankle sock and bandanas.