What error did the student make in their work?
A) There is a calculation error (added, subtracted, multiplied or divided incorrectly).
B) BD is the midsegment and should be multiplied by 2, not AE.
C) BD is the midsegment and should be multiplied by 1/2, not AE.
D) AE is the midsegment and should be multiplied by 1/3.