Someone Asks You to Estimate the Number of People in Your

Someone asks you to estimate the number of people in your social psychology class. You don't know the answer, but if you were to use the anchoring heuristic you would

A) think of how many people are in most of your classes and increase your estimate,Since it is a large class
B) count all the people whose names or faces you can remember
C) think of how many people sit in the front row and multiply by the number of Rows
D) think of the last number you remember hearing