Answer:
After the analisys of this situation.
Last weekend Victor helped his sister move into her new apartment. He didn't really feel like helping her, but he wanted to put her "in his debt," because he is planning to ask her if he can stay at her place for a couple of weeks.
The reason Victor has to help his sister move is:
A. egoistic helping.
Step-by-step explanation:
There are two main reasons for this. first, Egoistic helping is the concept to identify or define the action of helping someone else to reach an objective because it can benefit the helper. Second, in this situation, Victor helped her because he wanted her to owe him a favor. Also, because he plans on staying at her place for a couple of weeks.