Janice and Stephanie have been close friends for some time. When Stephanie recently lost her job, she couldn't afford her rent anymore and was on the verge of homelessness. Janice invited her to stay in her guest room for as long as needed. While there, Stephanie does some of the cooking for Janice and herself. According to equity theory, which of the following statements about this relationship scenario is true?

A. Stephanie is currently over-benefited in their relationship.
B. This relationship will probably survive a period of brief inequity as long as long-term equity is maintained.
C. Stephanie is investing less in their relationship than Janice right now.
D. All these statements are true.

Answer: D