Answer:
A) social exchange theory.
Step-by-step explanation:
In sociology and psychology, the social exchange theory refers to the process by which we take decisions analyzing the risks and benefits of our behavior and, after this analysis, we act according to it. In other words, we act to maximize benefits and minimize costs, so if something seems to "cost" a lot to us and doesn't give us too many benefits, we won't do it.
In this example, Katya donated money to a religious charity in order to boost her self-esteem while Jennifer is not donating money because she is fearful she might run out of money. We can see that they both analyze the costs and benefits of this action. For Katya, the benefits are higher (boost of self-esteem) than the costs; while for Jennifer, the risks are too much (running out of money) and therefore these differences are best explained in terms of the social exchange theory.