Thomas Finds a Wallet Full of Cash on the Counter

Thomas finds a wallet full of cash on the counter of the men's restroom.He immediately turns it in to campus security.If Thomas generally reasons at Kohlberg's Stage 2, how would he most likely justify his actions?

A) He would be punished for keeping the wallet.
B) His act helped to maintain social order.
C) He is a good person, and good people perform acts of kindness.
D) His action is likely to be rewarded.