Answer:
B. It was the largest city in the colonies.
Step-by-step explanation:
Considering the available options, the statement that applied to colonial Philadelphia is Option B "It was the largest city in the colonies."
This is because Philadelphia, aside from being a historic city in the United States history, was the country's largest city until being surpassed by New York City in 1790.
The period before the year 1790 was the time when the United States was still under the colonial rule of Great Britain.
The United States declared her independence in 1776.