You are likely to select nominal group technique over brainstorming because ________.
选项：

A:nominal group technique involves a great deal of face-to-face interaction
B:brainstorming encourages severe criticism to all ideas
C:research generally shows nominal groups outperform brainstorming groups
D:brainstorming decreases group cohesiveness
E:during brainstorming sessions, group members feel high pressure for conformity