Republican-leaning counties in Maryland outnumber Democrat-leaning counties, yet more of the state's U. S. representatives are Democratic rather than Republican. What is the most likely explanation for this circumstance? A. Counties are only important during U. S. presidential elections, not congressional elections.
B. The size of counties in mileage is more important than the number of counties.
C. Congressional districts are proportionate to the population, which is mostly Democratic.
D. Congressional districts in large population centers each elect more than one representative.​