Investigate each statement and select the one that best describes why southwest South America has a dry climate.(1 point)

a. Southwest South America is in the intertropical convergence zone.
b. The Gulf Stream produces a dry climate in southwest South America.
c. The northeast trade winds blow onto the west coast of South America.
d. There is a cold ocean current on the west coast of South America.

d. There is a cold ocean current on the west coast of South America.

The correct answer is d. There is a cold ocean current on the west coast of South America.