Use the Data Given Below to Answer the Following Question(s) $X$

Multiple Choice

Use the data given below to answer the following question(s) .
In an event $X$ , the probability of rolling a sum of 8 on two dice is $\frac{5}{36}$ while the probability of rolling an 11 is $\frac{2}{36}$ . In another event $Y$ , the probability of rolling a 2 is $\frac{1}{36}$ , the probability of rolling a 9 is $\frac{4}{36}$ , and the probability of rolling a 4 is $\frac{3}{36}$ .
-What is the probability that either event X or Y occurs?

A) $\frac{8}{36}$

B) $\frac{15}{36}$

C) $\frac{7}{36}$

D) $\frac{1}{36}$