I think it's A
Because that is the definition if it
Answer
B or A but im leaning towards B
"Answer:The reason: There is no acid rain in South Carolina because the state has no problem with sulfur dioxide. "
Explanation:
"Winds generally blow anything in South Carolina's air out to sea, not to nearby states. ... Their tests showed that acid rain, while a problem, was certainly not a crisis for this country."
