While attending a concert, Brian hears a loud explosion in the crowd. Seeing that the majority of the concertgoers run in one direction, Brian believes that people are running to that direction for a good reason and conforms by running in the same direction. Brian’s reaction is based on

Informational influence

Explanation: People tend to exhibit informational social influence when they conform or follow the path or direction in which the large majority of members of a group are headed. This tendency is also called social proof whereby one psychologically believes that the decision or direction taken bay the majority is good or probably the best to follow. This can be related to Brian's situation in the context above, whereby he followed the direction of the crowd because he believes that for a large proportion of the attendees to move in that direction, it probably should be the best direction to follow.

this headline suggests that midterm congressional   elections are at the corner and trump administration wants to activate his base by vowing to clamp down on immigrants and immigration as trump had said during his election campaign around two years ago. when a baby is born in usa, the baby becomes citizen of usa for 85 years and trump wants to end this rule of birthright citizenship to control illegal immigration and this what he said in an interview""we’re the only country in the world where a person comes in and has a baby, and the baby is essentially a citizen of the united states for 85 years, with all of those benefits,” "