
Passage: The coach of a provincial go team selects four of the seven players E, F, G, H, J, K and M to participate in the professional league. The selection must meet the following conditions: one of E or F will participate, but not both. One of J or K participates, but not both. If J participates, G participates. M will not participate unless F participates.
Question: Which of the followings is the four players who can participate in the competition together?
A. A.E,F,H,K.
B. B.E,H,J,M.
C. C.E,G,J,M.
D. D.F,H,K,M.
Answer: