What theme does the speaker's mention that he has "promises to keep" help convey in "Stopping by Woods on a Snowy Evening"?

Question 12 options:

You should never make a promise to someone that you do not intend to keep.


When life offers you a difficult circumstance, you should always try to make the best of it.


Responsibilities can sometimes prevent us from enjoying more pleasurable activities.


The battle of man against nature cannot be won by a lone man and his horse.