Yasir finds $100 in cash outside of a supermarket. He thinks about how that money could help him pay his bills, but ultimately decides to do the right thing and turn the money over to the police. According to Freud, which part of the mind helped Yasir make this decision? Hint: It's the part of the mind that acts as the conscience.

O A. Fear instinct O B. Superego C. Aggressiveness trait O D. Id​