In a class of 50 students, 29 are Democrats, 11 are business majors, and 5 of the business majors are Democrats. If one student is randomly selected from the class, find the probability of choosing: (a) Democrat who is not a business major. (b) A student who is neither a Democrat nor a business major.

a. 11/25 b. 4/10

a. 12/25 b. 3/10

a. 9/25 b. 6/10

a. 7/25 b. 5/10