Which Statement About the Pacific Decadal Oscillation (PDO) Is False

Multiple Choice

Which statement about the Pacific Decadal Oscillation (PDO) is false?

A) It is a major driver of salmon populations in the Pacific.
B) It is an oscillation of sea surface temperature and atmospheric pressure.
C) Its cycles typically do not last as long as those of ENSO and other similar oscillations.
D) Evidence that it has occurred over many centuries has been gathered from tree ring data.