
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 following options is for the coach to select two players to participate in the competition, which can make the combination of four players the only choice?
A. A.F and H.
B. B.G and M.
C. C.G and J.
D. D.H and M.
Answer: