In the following Venn diagram, the pentagon stands for clerks, the triangle stands for 'coffee lovers' the square stands for 'car owners' and the circle stands for 'social workers.' The given letters represent the persons in that particular category.

Which of the following categories of persons is represented by the letter 'D'?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. Coffee-lovers who are car owners and social workers.
The letter D is common to the circle, triangle, and squares and is represented by coffee lovers who are car owners and social workers.