After Polly Shrum sells a stock, she avoids following it in the media. She is afraid that it may subsequently increase in price. Which behavioral characteristic is the basis for Shrum’s decision...

After Polly Shrum sells a stock, she avoids following it in the media. She is afraid that it may subsequently increase in price. Which behavioral characteristic is the basis for Shrum’s decision making?
a. Fear of regret.
b. Representativeness.
c. Mental accounting.