A Professor Asks Students to Guess What Percent of People

Multiple Choice

A professor asks students to guess what percent of people in homeless shelters are parents and children. Before you can consider your answer, another student shouts out "about 10%." Your answer may be either higher or lower than it would be otherwise because of

A) the belief-bias effect.
B) the confirmation bias.
C) the anchoring and adjustment heuristic.
D) the hindsight bias.