There are 18 teams in the hockey league, and each team faces all the other teams 10 times each. How many games are played in the season? Choose the correct choice from the following choices:
A) 1370
B) 1530
C) 1790
D) 1950
E) 2110

Rationale: "the number of ways to choose two teams is 18 c 2 = 18 * 17 / 2 = 153 the total number of games in the season is 10 * 153 = 1530 . the answer is b ."
Answer: B