Read the passage.

When I hear people boasting of a work as yet undone, and trying to anticipate the credit which belongs only to actual achievement, I call to mind that scene by the brookside, and the wise caution of my uncle in that particular instance takes the form of a proverb of universal application: "NEVER BRAG OF YOUR FISH BEFORE YOU CATCH HIM."

Which word or phrase best reveals the author's tone towards his uncle's advice?

A) Proverb of universal application

B) Uncle in that particular instance

C) Boasting of a work as yet undone

D) Trying to anticipate the credit