Do PEMDAS. (parentheses, exponents, multiplication, division, addition, subtraction)
Because engaging conflict usually means perpetuating more pain and suffering and not finding a solution. The U.S. entrance in the Vietnam war is an example. WE entered the conflict to help bring it to an end instead it became a more gruesome and violent war than it had been before and the casualties quadrupled before it came to an end.
Depending by how answer choices you can pick I'd say three. So, the correct answers would be D, A, and E.
Answer:
I'm pretty sure it's a, I'm
sorry if I'm wrong