Read this sentence from "And of Clay Are We Created" in which the speaker describes the reporter, Rolf Carle.

Nothing could stop him, and I was always amazed at his equanimity in the face of danger and suffering; it seemed as if nothing could shake his fortitude or deter his curiosity.

The word equanimity suggests that Rolf Carle is

A. composed.
B. dedicated.
C. focused.
D. persistent.