Yes, it should be a comment.

If your answer is to point to another answer, whether yours or someone else's, that should be a comment and, for that matter, possibly a vote to close the current question as a duplicate of the previous.

If your answer is to include a link to another answer as an addendum to other information you are providing, then that is acceptable.

Yes, it should be a comment.

If your answer is solely to point to another answer, whether yours or someone else's, that should be a comment and, for that matter, possibly a vote to close the current question as a duplicate of the previous.

If your answer is to include a link to another answer as an addendum to other information you are providing, then that is acceptable.

Yes, it should be a comment.

If your answer is to point to another answer, whether yours or someone else's, that should be a comment and, for that matter, possibly a vote to close the current question as a duplicate of the previous.

If your answer is to include another answer as an addendum to other information you are providing, then that is acceptable.

Yes, it should be a comment.

If your answer is to point to another answer, whether yours or someone else's, that should be a comment and, for that matter, possibly a vote to close the current question as a duplicate of the previous.

If your answer is to include a link to another answer as an addendum to other information you are providing, then that is acceptable.