Select the sentence that follows the rules of parallelism.
Group of answer choices

a. After reading Harry Potter, the teenager was amazed to find she enjoys watching tv and to read books.

b. After reading Harry Potter, the teenager was amazed to find she enjoys not only watching tv but reading books.

c. After reading Harry Potter, the teenager was amazed to find she enjoys both watching tv and reading books.

d. After reading Harry Potter, the teenager was amazed to find she enjoys not only watching tv but also she enjoyed reading books.