Felicia Loves Playing Video Games

Felicia loves playing video games. However, at school she often conceals this interest in face-to-face situations because other girls tend to find video games boring and boys often ridicule her by saying that she probably sucks at playing video games because she is a girl. However, when Felicia gets home in the evenings she often animatedly discusses video games in anonymous online chat forums with other gamer enthusiasts. This is an example of:

A) the participant-equalisation effect.
B) intimacy equilibrium theory.
C) communication accommodation theory.
D) ethnolinguistic vitality.