Mary is very offended by the discussion at the dinner party she is attending, but she does a good job of suppressing her emotions so that nobody can tell. because mary is devoting her attention to self control, she is likely to

to not look pasty

explanation:

this isn't really an academic question, but a question nonetheless. girls don't like to look like pasty ghost, and want to look like golden shinning beauties if that makes sense. girls just want some color to their skin.

answer; /// i believe the answer is (phenylketonuria);