Question

75 what is the capital of the united states? a boston, ma b new york, ny c philadelphia, pa d washington, dc

Explanation:

The capital of the United States is a well - known fact in the field of history and geography (subfields of Social Science). Among the options, Boston, New York, and Philadelphia are major cities but not the capital. Washington, DC is the capital of the United States.

Answer:

D. Washington, DC