Answer:
Sure! :) I'm always open to new friendships!!
Explanation:
The answer is: Serious and forceful.
Tone: Is an attitude of a writer toward a subject or an audience. Tone is generally conveyed through the choice of words, or the viewpoint of a writer on a particular subject. In this case Lake´s words give the impression he is being serious and forceful.
All of these could influence a person’s perspective.
You can use the (Unique) constraint to compare one column against another column. Hope I got it right.