The answer is D and the answer is already on brainly, sooo yea.
Answer: Hope This Helps!
Explanation:
Costa Rica produces more than 80 percent of its electricity in hydroelectric plants. Which of the following would have the greatest impact on Costa Rica's ability to produce electricity? Frequent earthquakes and volcanic eruptions occur in an area of the Pacific Ocean call the Ring of Fire.
More use of earth resourses
The middle/lower class
but i really think middle
