The correct answer is D. South America becomes drier than normal
Step-by-step explanation:
La Niña is a weather phenomenon that occurs America as the sea temperature slightly decreases (from 3° to 5°) in the Pacific Ocean near the Equator line. This has multiple effects in North America, Central America and especially in South America where the Equator line is located, this includes drier weather condition in South America and more precipitations in other zones. Additionally, it has been found La Niña has a positive or neutral effect on agriculture and fishing in South America. According to this, the one that is an effect of La Niña is "South America becomes drier than normal".