Read this excerpt from "a cub pilot" from mark twain's memoir, life on the mississippi.

i began to climb the wheel like a squirrel, but i would hardly get the boat started to port before i would see new dangers on that side, and away i would spin to the other, only to find perils accumulating to starboard and be crazy to get to port again. then came the leadsman's sepulchral cry:

"d-e-e-p four! "

deep four in a bottomless crossing! the terror of it took my breath away.
which line from the excerpt best supports the idea that twain is afraid?

a. " i would spin to the "

b. "deep four in a bottomless crossing! "

c. "the terror of it took my breath away."

d. "i began to climb the wheel like a "