Direction: (i) There are 7 professors in a college. They are-A, B, C, D, E, F and G. Each of them teaches a different subject. (ii) Three of them are ladies. There are two couples among them. (iii) C is the professor of Social Science and is married to the lady professor who teaches Chemistry (iv) E and G are ladies and teach Biology and Physics, respectively. (v) A teaches Maths and his wife does not teach Physics. (vi) B teaches either Chemistry or Commerce. (vii) F and D are gents and F is unmarried. Which of the following are couples?

• A.  BC and AE
• B.  AC and DE
• C.  GA and CD                   
• D.  Cannot be determined
• E.  None of these