Answer: between the last one and first one but my best guess is A
Explanation: Hope this helps!
Usually the hook at the beginning or the thesis at the end. hope this helps :)
The answer is a. Extreme poverty
The correct answer is the first option.
The sentence that presents the correct subject-verb agreement is the first one since in it we are talking about "heavy rains" OR "fast-melting snow". In other words, the subject is coordinated by the conjunction "OR" which makes the subject singular. The verb "causes" is conjugated in the third person singular.