In North America, people are mainly concentrated: A. primarily up the center of the continent.

B. along the coast and around the great lakes.

C. along the east coast and southern California

D. in the northeast.

B. along the coast and around the great lakes.

Explanation:

Explanation:

if I had to guess I would say c

true. earthquakes are felt whenever there is a slip around a fault in the rocks below the earth. this reorientation of faults create sesmic waves and is known as earthquake, the severity of which is measured in richter scale. these are more prominent in hilly regions as the rocks usually form faults to balance the pressures on it.