Sarah had 13 pieces of candy. She ate several pieces of the candy and noticed that the number of remaining pieces was a prime number. Which of the choices is a possibility for the number of pieces left?	Choose one:  A) 12 pieces  B) 10 pieces  C) 9 pieces  D) 8 pieces  E) 7 pieces
Answer 7 pieces, 7, is a prime number.
<result>E</result>
Sarah had 13 pieces of candy. She ate several pieces of the candy and noticed that the number of remaining pieces was a prime number. Which of the choices is a possibility for the number of pieces left?