Close, friendly groups usually work well together, but they may face a problem involving an extreme form of conformity called:
a) fundamental attribution error.
b) groupthink.
c) generational identity.
d) self-serving bias.
e) social facilitation.

Group-think

Explanation:

Group thinks is about the group peers that intentionally make an irrational or on an optimal decision that is related to the discouragement or to conform to the dissents. In the group, the group members are to refrain from making any expression about any doubt, suspension The term group-think was introduced by Janis Irvin.  

Thus here in the above context, close friends usually work together but they are not at the level of conformity of the group that is called group thinks.

answer: fact: italy has over 300 islands ranging from extremely small uninhabited islands to the huge island of sicily.

explanation:

opinion: italy has way to many islands

the following men who did not in the unification of italy were.

a) giuseppe mazzini

c) alexander ll

the other two men were camilo cavour and giuseppe garibaldi they the unification of italy by yielding territories in the italian unification. in 1861 italy was declared a united-nation state under the sardinian king victor immanuel ll.