Answer:
Correct answer is C. in large urban centers
Step-by-step explanation:
First option is not correct as although most of the population in Canada is located near the border, that is not the case with United States.
B is also not correct as while in United States we have large cities on the coast like Boston of Los Angeles, that is not the case in Canada.
C is correct as most of the population is distributed in the large megapolis, such as Montreal, Toronto, New York, Los Angeles...
D is also not correct as not so many people is living in that area in contrast to other regions.