Could you please help me understand why/how the correct answer is supported ? Thank you very much !

Imagine we wanted to investigate the effects of three different conflict styles Add a Comment: (avoiding, compromising and competing) on marital satisfaction, but we discover that marital satisfaction is known to covary with self-esteem. What would including self-esteem as a covariate in the model, along with the interaction of Media Comment Attach File self-esteem & conflict style, tell us? Save You Answered O ctor A) What would the mean marital satisfaction be for the three conflict style groups, if their levels of self-esteem were held constant? O B) Do we significantly violate the assumption of homogeneity of regression slopes? O C) What would the mean self-esteem score be for the three groups if their levels of marital satisfaction were held constant? O D) Does marital satisfaction have a significant effect on the relationship between conflict style and self-esteem? Correct Answer O E) Both A & B