다음 글의 빈칸 (A), (B)에 들어갈 말로 가장 적절한 것은?In … | [법원직 9급 영어] 17년 1회차 기출문제 상세 페이지

다음 글의 빈칸 (A), (B)에 들어갈 말로 가장 적절한 것은?
In addition to the problems of individual resources, there are increasing links among energy, food, and water. As a result, problems in one area can spread to another, creating a  (A)  circle. For instance, Uganda experienced a prolonged drought in 2004 and 2005, threatening the food supply. The country was using so much water from massive Lake Victoria that the water level fell by a full meter, and Uganda cut back on hydroelectric power generation at the lake. Electricity prices nearly doubled, so Ugandans began to use more wood for fuel. People cut heavily into forests, which  (B)  the soil. The drought that began as a threat to food sources became an electricity problem and, eventually, an even more profound food problem. Cycles like these can end in political unrest and disasters for whole populations.

(A) vicious / (B) fertilized

(A) virtuous / (B) deteriorated

(A) destructive / (B) degraded

(A) constructive / (B) undermined