Task: Identify which subgroup consists of only ladies, based on the given conditions.
Step 1 — Decode genders from statements:
• A and D are unmarried ladies (explicitly given).
• B is the brother of C ⇒ B is male.
• There is a married couple with E as the husband ⇒ E is male.
• Since A and D are unmarried, the wife in the married couple cannot be A or D. Therefore the wife must be C ⇒ C is a lady.
Conclusion on genders:
Ladies = {A, C, D}.
Men = {B, E}.
Step 2 — Cross-check with the game constraints (not strictly needed for this question, but ensures consistency):
• A and D do not play any games (given).
• No lady is a chess or badminton player (so only possible game for a lady is tennis).
• B is neither chess nor tennis ⇒ the only option left for B (if he plays) is badminton (which is allowed since B is male).
• With one badminton, one chess, one tennis overall, a consistent assignment is: B = badminton, E = chess, C = tennis, A & D = none. This remains consistent with all constraints and reaffirms that C is a lady.
Step 3 — Answer the option-type question:
The only all-ladies group is {A, C, D}.
If the provided options do not include {A, C, D}, then the correct choice must be “None of the above.”
Final Answer: The all-ladies set is {A, C, D}. Since this set is not among the listed groups, the correct option is (D) None of the above.