When People Speak of the "Rain Shadow" of the California

When people speak of the "rain shadow" of the California Coast Range,they are referring to the

A) dark- colored chaparral vegetation that grows on the eastern flank.
B) shadow cast by the mist and clouds that hover above the crest of the range.
C) scarcity of rain on the eastern flank and adjacent lowlands compared to the western flank.
D) forested condition of the eastern flank of the range compared to the western flank.