Answer:
The right answer is Assistance group (option A)
Explanation:
If different people share common goals, interest, needs and can have firm relations and are constantly in contact creating the feeling of being part of a group, then they created an Assistance group. One particular characteristic of this kind of group is that there is no need to the components to be close. For example, if you go on an exchange abroad and meet a group of people who are in the same situation, when the exchange comes to its ends and everyone goes back home, you will still feel as the group of exchange students although you are far away of each other. The group feeling is not missed although you are apart.
