What are the possible measures of the triangle’s sides? Select all that apply.

For three lengths to form a triangle, the sum of the two shorter sides must be greater than the longest side. For A, 3 + 4 = 7 > 5; for C, 5 + 12 = 17 > 13; and for E, 9 + 12 = 21 > 15. B and D do not work because their two shorter sides add to less than the longest side.

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