According to the article, cleaning the T. rex is just a small part of Duerksen's job at the museum.

Which selection from the article BEST supports this idea?

A
Trenton Duerksen’s eyes scoured the massive skull before him, darting left and right as he searched for his nemesis: particles of fine, sticky dust that resemble gray snow.
B
Perched atop a scissor lift in the dinosaur wing of the American Museum of Natural History, Duerksen was standing eye to eye with Tyrannosaurus rex.
C
Armed with an ordinary household duster, a vacuum strapped to his back, and wands and brushes of various sizes and shapes, Duerksen methodically worked his way across the surface of the head, cleaning 2-inch strips at a time.
D
But all year long, Duerksen is sweeping, dusting and repairing things that become cracked, frayed or somehow damaged — everything from the museum’s 94-foot-long fiberglass blue whale to tiny shells, sponges and butterflies.