Answer:
The correct answer is letter "D": equalize hierarchical or status differences among members of a group.
Explanation:
The Nominal Group Technique (NGT) is a method of brainstorming ideas in a group that starts by having the members writing down their perceptions on certain matters to later expose them to the rest of the group. Collectively, all the group members decide which idea is the best to solve the issue they have in common.
Under those circumstances, the NGT treats each of the opinions of the individuals involved equally regardless of the hierarchy they may occupy in the group.