Ruby and Sam each roll a fair 6 -sided die with the numbers $1,2,3,4,5$, and 6 on its faces. Sam subtracts the number on his roll from the number on Ruby's roll. What is the probability that the result is a negative number?
(A) $\frac{5}{18}$
(B) $\frac{5}{12}$
(C) $\frac{7}{12}$
(D) $\frac{1}{2}$
(E) $\frac{5}{6}$

## Part C: Each correct answer is worth 8.