Which word best describes the tone of robert frost’s poem “the road not taken”? contemplative discouraged enraged animated

Contemplative.

Explanation:

The poem "The Road Not Taken" by Robert Frost talks of the speaker's decision to go on the road less traveled by other travelers, though that decision seems to have made him question the possibilities of 'what if' he had gone on the other road instead.Contemplating after everything had been done, he thinks to himself whether he had made the right decision of taking "the road less traveled by" and what would have been the outcome if he had taken the other road. In the end though, he laments that he will indeed be "telling this with a sigh" in the future and that decision has "made all the difference".