Compute the Probability of an Event Using the Complement Rule $0.4$

Compute the Probability of an Event Using the Complement Rule
-A game has three outcomes. The probability of a win is $0.4$ , the probability of tie is $0.5$ , and the probability of a loss is $0.1$ . What is the probability of not winning in a single play of the game.

A) $0.6$
B) $0.5$
C) $0.1$
D) $0.33$