contestada

In this passage, the author goes from a negative point of view to a positive one. How can we tell?
A.
The author shows that she goes from hating her small room to enjoying it.
B.
The author changes her mind about where to put her mirror.
C.
The author communicates that she used to believe in Santa, but now she does not.
D.
The author shows that she goes from a clean person to a slob.