In a game between two teams A and B, John is set to win 200 dollars if A wins, and 100 dollars if B wins. John calculates his expected winning to be 170 dollars. According to John's calculations, what is the probability that B wins (given no probability of a tied/drawn game)? HINT: Let the probability that B wins be P, and which means the probabilty that A wins is (1 - P) and then set up the expected value accordingly and solve for P. Select the correct option. Select one: a. 0.3 b. 0.5 c. 0.4 d. 0.7