Suppose you play a game that you can only either win or lose. The probability that you win any game is 55%, and the probability that you lose is 45%. Each game you play is independent. If you play the game 20 times, what R code would compute the probability that you win at least 15 of the 20 times?
A. 1 - pbinom(14, 20, 0.55)
B. pbinom(14, 20, 0.45)
C. 1 - pbinom(15, 20, 0.45)
D. pbinom(15, 20, 0.55)