Excerpt from The Catching of Unshelled Fish
Olive Green (Myrtle Reed)

But, as Grover Cleveland said: "He is no true fisherman who is willing to fish only when fish are biting." The real angler will sit all day in a boat in a pouring rain, eagerly watching the point of the rod, which never for an instant swerves a half inch from the horizontal. The real angler will troll for miles with a hand line and a spinner, winding in the thirty-five dripping feet of the lure every ten minutes, to remove a weed, or "to see if she's still a-spinnin'." Vainly he hopes for the muskellunge who has just gone somewhere else, but, by the same token, the sure-enough angler is ready to go out next morning, rain or shine, at sunrise.

What information does the author use in the fourth paragraph to support his belief that true fishermen are faithful to the sport even when fish are scarce?
A) a comparison of the price of fish in a market
B) current and reasonable prices of fishing equipment
C) a descriptive quote emphasizing traits of dedication
D) an anecdote describing a successful fishing excursion