A Probability Experiment Is Conducted in Which the Sample Space

Multiple Choice

A probability experiment is conducted in which the sample space of the experiment is S={1,2,3,4,5,6,7,8,9,10,11,12,13,14,15} . Let event A={7,8,9,10} and event B={9,10,11,12,13} .
Assume that each outcome is equally likely. List the outcomes in A and B. Are A and B mutually exclusive?

A) {9,10} ; no
B) {9,10} ; yes
C) {7,8,9,10,11,12,13} ; no
D) {7,8,9,10,11,12,13} ; yes