Answer:
a. It is the satisfaction gained from being in a group that stands for what a person believes in.
Explanation:
An incentive that comes from taking part in sharing beliefs and opinions in a given issue will be considered a purposive incentive:
Members experience satisfaction for being part of a group that promotes their interest and reflects their lifestyle and values.
The groups will have an ideological commitment like: gay rights activists, environmental activists and civil libertarians.
The members will find a sense of belonging in the group and will feel that their voice is expressed through a community that shares their stand on the issues they try to promote.
If this question is based on Billy Milligan story, than yes :) There were real examples, although just a few of them during the whole history, or maybe noone knew about such a syndrome earlier.
2. glossary. hope it helps
Answer: The object will continue moving north because the two forces are equal and will cancel each other out.
Answer:
I think it means,"become a better version of your self"