Raul is playing a trivia game. At the end of the first round, he has 7 points. During the second round, he loses 15 points. Which expression represents the total number of points Raul has at the end of the second round?
Select two that apply.
A. 7 - 15
B. 7 + (-15)
C. -7 - 15
D. -7 +(-15)