Step 1: Understanding the Question:
Six friends A to F have six different jobs: two housewives, a professor, an engineer, an accountant and a lawyer. Exactly two of them are married couples. We must find which pair is married.
Step 2: Use the accountant.
C is the accountant. No woman in the group is an accountant, so C is a man. C is married to F, the professor, so F is a woman. This gives the first couple: C and F.
Step 3: Use the lawyer.
The lawyer is married to D, who is a housewife. A housewife is a woman, so the lawyer is a man. This is the second couple: the lawyer and D.
There are only two married couples, so the married people are exactly C, F, D and the lawyer.
Step 4: Find who the lawyer is.
The clue says A is married to a housewife, so A must be among the married people. A is not C, F or D.
The only married person left is the lawyer, so A is the lawyer. This fits the clue, since the lawyer's wife D is a housewife.
So the second couple is A and D.
Step 5: Check each option.
Option (1), A and B: A is already married to D, and there are only two couples, so this is wrong.
Option (2), B and E: neither is among the married people C, F, D, A, so this is wrong.
Option (3), D and E: D is married to A, not E, so this is wrong.
Option (4), A and D: this is the couple we found, so it is correct.
Final Answer:
The two married couples are C and F, and A and D. Among the options only A and D is a couple, so option (4) is correct.
\[ \boxed{\text{Option (4): the pair A and D}} \]