Which is the hypothesis of this statement?
If a and b are negative, then a + b is negative.
A. If a and b are negative, then a + b is negative.
B. If a + b is negative, then a and b is negative.
C. a and b are negative. <---
D. a + b is negative.
Because D is the conclusion, and that's the only part left. I don't have a better explanation, I'm sorry, I can't really explain why I think that's the answer. :)