If p and q are two different odd prime numbers such that p < q, then which of the following must be true?
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A(2p + q) is a prime number
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Bp + q is divisible by 4
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Cq – p is divisible by 4
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D(p + q + 1) is the difference between two perfect squares of integers
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E$$p^{2}+q^{2}$$ is the difference between two perfect squares of integers
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正确答案: D