I dont see how... can you elaborate?

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Here is the reasoning: There are two housewives in the group, so D and one other person are housewives. C is married to F, who is a professor. No woman in the group is either an engineer or an accountant, so C is a man. A is married to a housewife, so A is married to the other housewife. E is not a housewife and is not a man, so E must be an engineer. We know that there are two housewives in the group, and that C is married to F, who is a professor. Therefore, C cannot be a woman, so he must be a man. We also know that A is married to a housewife, and that there are only two housewives in the group. Therefore, A must be married to the other housewife. This leaves E as the only person who is not a housewife or a man. Since we know that E is not a housewife, and that there is only one engineer in the group, then E must be the engineer. Therefore, E's profession is an engineer.

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