In the last line, “And that has made all the difference,” the word that refers to A the road less traveled by. B the road not taken.
C the speaker’s decision about which road to take.
D the roads going in different directions.

Which line shows that the speaker is thinking about the future?
A “And both that morning equally lay”
B “I took the one less traveled by,”
C “Somewhere ages and ages hence:”
D “Then took the other, as just as fair,”

The phrase “long I stood” tells readers that the speaker
A thought a long time about which road to choose.
B was waiting for someone to walk by.
C finally made a choice because of being tired.
D did not understand the need to make a choice.