Big book test 11 section 5

The answer key said that B is the correct answer. I drew the triangle. However, I put C because the range of possible values for d is 8<d<32 (noninclusive) but since the answer choices are all written as inclusive, my idea was to pick the only range that did not include an impossible value for d.

Am I wrong and if so, how? What am I missing?

i dont think we are asked to draw a triangle here. its a straight line and z can be on either side of x. hence B.

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