Correct Answer: D
Explanation:
|
C (father) |
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| D |
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B (son) |
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A (daughter) |
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Choice A is incorrect because C is the grandfather of A. Choice b is incorrect because it is possible that D is a female. Choice C is incorrect because D (for example) may be a male and certainly could then have not mated with B. Choice E is incorrect for the following reason: if P is the granddaughter of C, she can be the daughter of D who may not have mated with B. Thus, P and A may be cousins, not sisters. Choice D is correct for the following reason: if T is the daughter of B, A and T are sisters since A is also the daughter of B
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