Read the passage below: Two roads diverged in a yellow wood,
And sorry I could not travel both
And be one traveler, long I stood
And looked down one as far as I could
To where it bent in the undergrowth;

How does the word "sorry" impact the meaning of line 2?
1. It has a positive connotation.
2. It has a negative connotation.
3. It has a neutral connotation.
4. It is an example of repetition.