Which BEST explains why a terrorist group might target a region's infrastructure? To prompt foreign countries to send aid
To bring economic activities to a halt
To make the population question the government's legitimacy
To overthrow the existing government
To unite the people of the area

I would go for option B (To bring economic activities to a halt.)

Explanation:

A terrorist aims is always to disrupt the public sense of security.

(I'm not a teacher! Just an 9th grader) so this might be incorrect.

Hope it helps! :)

detente translated to english means politics

presidency should be the title