Monocytosis Occurs When the Absolute Monocyte Count Exceeds Which of the Following

Monocytosis occurs when the absolute monocyte count exceeds which of the following?

A) 2.0 $\times$ 10⁹ cells/L
B) 0.2 $\times$ 10⁹ cells/L
C) 1.0 $\times$ 10⁹ cells/L
D) 5.0 $\times$ 10⁹ cells/L
E) 0.5 $\times$ 10⁹ cells/L