Read the excerpt below.

And both that morning equally lay

In leaves no step had trodden black.

Oh, I kept the first for another day!

Yet knowing how way leads on to way,

I doubted if I should ever come back.


In the excerpt above, the underlined phrase communicates the idea that _____.

The speaker was facing a difficult choice.
Neither path had traffic that morning.
The speaker planned to come back and take the first road.
After traveling far in one direction it is easier to keep going.