Ella ( se siente) enferma.
True.
Museo is masculine and you can't change it to female it is one of the few words you can't change.
Answer:
C. Looks in the mirror.
Explanation:
The activity represents that Carlos does washes her hair then eats breakfast and goes to school. There is no reference of looking herself in the mirror. This suggests that she has forgot to look herself in the mirror before going to school.
The answer is B) por que.