List the elements in the set .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}. A ? (B ? C)
A. {q, y, z}
B. {q, r, w, y, z}
C. {q, s, u, w, y, z}
D. {q, w, y}
Answer: C
Mathematics
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