Which city does the airport code HOU represent?

The airport code HOU represents Houston Hobby Airport in Texas. This airport is one of the two primary airports serving the Houston area, the other being George Bush Intercontinental Airport, which has the airport code IAH. Hobby Airport, located closer to downtown Houston, primarily serves domestic flights and a limited number of international flights. In this context, HOU is utilized to specifically designate Houston Hobby, distinguishing it from the other airport in Houston, ensuring travelers and flight operations can identify the correct airport for their journey.

The other options do not match the HOU code, as they refer to different airports within or outside Texas, thus confirming that B is the accurate choice.