Answer:
d. if the quality of the decision is important and if the subordinates don't have enough information to make the decision themselves.
Step-by-step explanation
According to normative decision theory, a group decision should be made in a rational and practical manner by the people who are capable to conduct a through analysis based on the data available to them.
If the Subordinates do not have enough information to make the decision, it is impossible for them to make the through analysis that lead to the best decision for the group.
IN such situation, this theory advocated for the upper leaders of the group to seclude the members and make the decision without them,