Feedback such as good/bad; /useless; important/unimportant; etc. are examples of:
a. critique
b. evaluation
c. criticism
d. analysis

Feedback such as good/bad; helpful/useless; important/unimportant; etc. are examples of C. CRITICISM.

Criticism is the practice of judging the merits and faults of something. It is an evaluative or corrective exercise can occur in any area of human life.

Good critics must have the following qualities:
1) Insight - they must understand why they are criticizing.

2) Attitude -  they should be emotionally confident and morally comfortable in making a criticism, and dealing with the response to criticism.

3) Inquiry - they  should be willing to question authority, popular opinion, and assumptions

4) Knowledge - should research the subject of their criticism to maintain the factual integrity of their criticism.

5) Skills - they should choose and apply the correct kind of criticism to an issue, so that the criticism will be balanced, complete and persuasive. They must have adequate skills in reasoning, research, and communication.

6) Integrity - they should remain consistent and honest before, during, and after a criticism is expressed.