A schedule must include 3 of 6 activities: Art, Biology, Chess, Dance, Exercise, French. If Art is chosen, Biology is not. If Chess is chosen, Dance is chosen. Exercise and French cannot both be chosen. Which is valid?
✓ Correct Answer: Option A
A: Art→no Biology ✓. Chess→Dance ✓ (Dance included). No E&F conflict. Valid. B: E and F both ✗. C: E and F both ✗. D: Chess→Dance required but Dance not included ✗.