Correct Answer - Option 4 : None of these
Given,
Three ladies X, Y and Z marry three men A, B and C.
1) X is married to A, Y is not married to an engineer.
2) Z is not married to a doctor, C is not a doctor and A is a lawyer.
By checking the given options:
1) X is married to a doctor → It is not possible because as mention in question 'A is a lawyer'.
2) Y is married to C, who is a doctor → It is not possible because as mention in question 'C is not a doctor '.
3) Z is married to B, who is an engineer → it is not possible because Z is not married to a doctor and Y is not married to an engineer so by this statements we can conclude that Z married to an engineer now according to the question C is not a doctor and A is lawyer it means C is an engineer.
So, no statement follows.
Hence, 'None of these' is the correct answer.