B, advocate. Being an advocate means you speak out for it, or that you show your support for something.
I dont know but there is anouther website called easy answers you can try hope you find it out.
Answer: Private benefit; external benefit
Explanation:
Citizens are faced with divers scenario where they have been threatened by guns, the gunmen understand that in some of those scenario they victims where unarmed and other scenario they are armed. When law abiding citizens carry gun to protect themselves from this gunmen it is understood to be a Private benefit of concealed carrying while this also reduces the ability of the criminals to attack them, this is known as external benefit of concealed carry.