There are 9 players in a chess group, and each player plays each of the others once. Given that each game is played by two players, how many total games will be played? Pick:
A) 10  B) 30  C) 36  D) 60  E) 90

Rationale: "9 players are there . two players play one game with one another . so 9 c 2 = 9 x 8 / 2 = 36 so option c is correct"
Answer: C