An El Nino Is Fully in Place When

Multiple Choice

An El Nino is fully in place when:

A) as dispersing water spreads away from the equator on the eastern coast of South America.
B) as dispersing water spreads away from the equator on the western coast of South America.
C) the leading edge of the Kelvin wave reaches the western coast of South America.
D) the leading edge of the Kelvin wave reaches the eastern coast of South America.