In a Large Population of College Students, 56% Live in a Campus

Multiple Choice

In a large population of college students, 56% live in a campus residence hall, 62% participate in a campus meal program, and 42% do both. Define events
R = student lives in a campus residence hall
M = student participates in a campus meal program
-What is the appropriate expression for the probability that a randomly chosen college student who lives in a campus residence hall participates in a campus meal program?

A) P(R?M)
B) P(M?R)
C) P(M?R)
D) P(M?R)