Which Statement Is NOT True About Stomata

Which statement is NOT true about stomata?

A) As guard cells become turgid, the stomates open.
B) There are two guard cells around each stomate.
C) Guard cells take up potassium ions and water enters the guard cells.
D) The blue light component of sunlight is a signal that can cause stomata to close.
E) Stomates open and close on a daily basis, even if kept in the dark, on a circadian rhythm.