Bunuel wrote:

c and d are prime numbers. If c - d is an odd prime, then which of the following must be true?

(A) c is even

(B) d is odd

(C) c*d is odd

(D) d is even

(E) c*d - c is even

Hi Bunuel,

Can you please help me to clarify my doubt for the above question. The question states that C & D are Prime Numbers and the option states that C & D are even/odd numbers. Is it right??

Also, odd prime numbers are all the prime numbers except 2 .. Am I right to think this??

Apologies if this is a stupid doubt

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