From A) The answer could be 1 , 0, or -1. However, the question prompt dictates that y must be positive, eliminating -1 and 0. A is sufficient.
From B) If a<1, a could be zero, in which case y could be any positive integer. If a does not equal 0, then y = 1. There are multiple solutions, Not Sufficient.
From B) If a<1, a could be zero, in which case y could be any positive integer. If a does not equal 0, then y = 1. There are multiple solutions, Not Sufficient.
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