huangsiyan

i think B is right. It said"The crimes committed by teenagers in the afternoon are mostly small thefts and inconsequential vandalism". Thus, the crimes committed by teenagers in the afternoon are so insignificant that citizens won't be concerned about them.

SO, B can weaken the argument that" they are unlikely to affect the problem that concerns citizens, since most crimes committed by local teenagers take place between 3 p.m. and 6 p.m."