Sets A, B, and C are given. Find the indicated set. A = {-8, -3, -1, 2, 5}, B = {-3, 2, 5, 7}, and C = {-1, 4, 9}(A ? B) ? C
A. {-3, -1, 2}
B. {-3, -1, 2, 5}
C. {-3, -1, 2, 4, 5, 9}
D. {-3, 2, 5}
Answer: C
Mathematics
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A. 
B. 
C. 
D. 
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