Let U = {q, r, s, t, u, v, w, x, y, z} A = {q, s, u, w, y} B = {q, s, y, z} C = {v, w, x, y, z}. Determine the following.(A ? B)'
A. {q, s, t, u, v, w, x, y}
B. {s, u, w}
C. {t, v, x}
D. {r, t, u, v, w, x, z}
Answer: D
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