Pepito and Daria Have Been in a Relationship for Two

Pepito and Daria have been in a relationship for two years. Pepito often wants to spice up their sex life by trying out new things, but Daria is reluctant to do so. Whenever Pepito tries to discuss it with her, he finds it very difficult to get Daria to be open about it. Instead she gets very shy and withdrawn. What argument could Pepito make to try and convince Daria about the importance of talking through their issues?

A) Being open when discussing their sex lives could bring them closer together emotionally.
B) If they keep avoiding their sexual incompatibilities, they might start to resent each other.
C) Exploring each other's sexual desires can increase sexual satisfaction for both of them.
D) Any of the above