Why are conflicts in the performing stage stronger and sometimes even more destructive?

Question $6$Select one:

a$.$

Because in this stage the group is new and members are yet to adjust themselves in terms of the behavior expected of them.

b$.$

Conflicts do not happen in the performing stage of group dynamics.

c$.$

Because members will usually reveal different levels of enthusiasm toward the goal, and the greater the differences in this enthusiasm, the stronger the internal conflict.

d$.$

Because discussion about issues from the formalizing stage brings feelings out into the open, and when feelings are discussed, it typically leads to additional frustration.