The family arcade center charges an entry fee of $11 plus an additional $1 per game played. Which of the following functions describes the average expense for a player per game played, in terms of x, the number of games played?
A. c(x)=$12/x

B. c(x)=$11+$1x/x

C. c(x)=$11+$1x/14

D. c(x)=$11x+$1/x