Alice has a rectangular garden with width 5 feet and length 7 feet. She wants to divide her garden into two parts using a fence as shown in the following figure so that she can keep purple and violet flowers in the two areas. How long should the fence be?
7 ft5 ft

A. 8.6 ft
B. 7.5 ft
C. 74 ft
D. 37 ft
E. 10.56 ft
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