Correct Answer:
A. Roosevelt Hotel
The Roosevelt Hotel in New York was indeed owned by Pakistan International Airlines (PIA). This was a significant international asset for the airline, acquired in 1979. It served as a notable investment and a symbol of PIA's global presence for decades. Options B, C, and D are incorrect; Hilton Manhattan is a different hotel chain, Empire State Inn is not associated with PIA's ownership, and Karachi House is not the name of PIA's hotel in New York.