‘D’ is mother-in-law of ‘M’ who is sister-in-law of ‘A’. ‘P’ is father of ‘Q’ the only brother of ‘A’. How is ‘D’ related to ‘A’ ?
D is mother-in-law of M. M is sister-in-law of A.
Therefore, we can conclude that D is mother of A.
Also, this is verified as Q is only brother of A.
Therefore, option C is the correct option.
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