Read this sentence from "The Tail" As we climb some more, I tried not to imagine a huge yellow dog with red eyes gnawing at my heels.

What is the best explanation for why Tasha does not want to imagine a dog gnawing at her heels?

A: It would be funny
B: It would be painful
C: It would be boring
D: It would be slow

Is B Right?

Yes, B.

To determine the best explanation for why Tasha does not want to imagine a dog gnawing at her heels, we need to carefully analyze the given sentence.

In this sentence, Tasha is described as climbing, which suggests that she is in a physically demanding situation. Additionally, the use of the word "gnawing" suggests a painful and potentially dangerous action. Taking these factors into account, we can deduce that the most likely reason for Tasha not wanting to imagine a dog gnawing at her heels is that it would be painful.

Therefore, the best answer choice is B: It would be painful.