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1) is sufficient. X is prime and X>10 means that x odd. 3 is odd. Odd-Odd=even. If we have one number in multiplication even the product is even. => y(x-3) is even.

Whoa...I was way off, i see what the problem is now. Thanks.

How do you get an ODD number to in order to get the answer D?? I substituted 11 for X, and 2 for Y

You have to answer if the term is odd or not.
Answer is it is NOT ODD. That means you can answer the question using both statements. Hence it is D. _________________