What is the capital city of El Salvador?

The capital city of El Salvador is San Salvador. It is the largest city in the country and serves as its political, cultural, and economic center. Founded in the 16th century, San Salvador has a rich history and has undergone significant development over the years. It is known for its vibrant culture, historical landmarks, and urban activities, making it an essential hub in Central America.

Other locations mentioned in the choices, such as Guatemala City, which is the capital of Guatemala, San Jose, which is the capital of Costa Rica, and Belmopan, which serves as the capital of Belize, are all notable cities but are not associated with El Salvador. Each of these cities is the capital of a different Central American country, highlighting the diversity within the region.