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149. A 4-variable AND-OR circuit produces a 1 at its Y output. Which combination of inputs is correct?
(a) A = 0, B = 0, C = 0, D = 0
(b) A = 0, B = 1, C = 1, D = 0
(c) A = 1, B = 1, C = 0, D = 0
(d) A = 1, B = 0, C = 0, D = 0
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