Answer:
focusing on the specific problem at hand rather than the person
Explanation:
When one receives a constructive feedback from someone, one of the ways to effectively use such feedbacks is to focus on the specific problem at hand rather than focusing on the personality of the person.
If you focus on the person, there is tendency that you might form bias that would hinder you from being objective in accepting and putting such constructive feedback into effective use.
Focusing on the person might make you discard the feedback and see it as an attack or destructive, especially if you've previously had an unpleasant encounter with the person people.
All other options given are not part of the technique that uses constructive feedback effectively.
The answer is: focusing on the specific problem at hand rather than the person
