If you guys could help that'd be amazing!​

A claim that is able to support this evidence may be;

C. In “The Road Not Taken,” Robert Frost addresses the theme that an insignificant choice can have a significant effect.

The speaker says in the poem that the roads were basically the same. There is no questioning that the speaker did or did not take the road that was less traveled, because he did not. He believed they were the same.

As for the sigh, it can be interpreted in different ways, except, the sigh and the last stanza cannot be interpreted as if the speaker is happy because he took the unpopular and less traveled path. That idea is not presented at all in the poem.

Option B caught my attention and led me to believe it may or not be the correct answer as well.

Nevertheless, the speaker states that he shall be telling this with a sigh because there is a certain amount of regret.

The speaker is telling this with a sigh because he could not take both roads.

You can also ask yourself, "Why is it called The Road Not Taken" and not "The Road Taken" ?

The sigh seems to be a sigh of regret.