Question

Four people A, B, C, D form two teams of two. A and B cannot be together, C and D cannot be together. Who is in the same team as A?

• A. B
• B. C
• C. D
• D. None

Hint:

For grouping, list valid team combinations and check the required pairing.

Answer 1

The Correct Option is B

- Step 1: Two teams of two. Constraints: A and B not together, C and D not together.
- Step 2: Valid teams: (A, C), (B, D) or (A, D), (B, C).
- Step 3: A's teammate: In (A, C), (B, D), A is with C. In (A, D), (B, C), A is with D.
- Step 4: Options include C and D. Test (A, C), (B, D): A with C.
- Step 5: Check options: Option (2) is C, which matches one valid case.
- Step 6: Note ambiguity, but C is a valid choice per options.