Suppose you do a calorimetry experiment to measure the specific heat of a penny. You take a number of pennies, measure their mass, heat them to a known temperature, and then drop them into a container of water at a known temperature. You then deduce the specific heat of a penny by measuring the temperature change of the water. Unfortunately, you didn't realize that you dropped one penny on the floor while transferring them to the water. This will 

A. Cause you to underestimate the specific heat. 

B. Cause you to overestimate the specific heat. 

C. Not affect your calculation of specific heat.