Read the Following Draft Paragraph, and Then Select the Letter

Multiple Choice

Read the following draft paragraph, and then select the letter of the sentence in each set below that is the best revision.
My niece is a ballet dancer. She has been accepted to the Dance Theater of Harlem. She will probably be a member of a professional dance company sometime in the future. She loves to dance. She has been dancing since she was five years old. She dances solo and also as a member of the ballet corps. I always enjoy attending her performances.
Which sentence is the best revision?

A) She loves to dance, and she has been dancing since she was five years old.
B) She loves to dance since she was five years old.
C) Since she was five years old, she has been dancing.