Pakistan is an oblong stretch of land of over ______ km, from the Arabian Sea to the Karakoram Mountains:

A. 2,250
B. 2,500
C. 3,000
D. 3,200

The correct answer to the question: "Pakistan is an oblong stretch of land of over ______ km, from the Arabian Sea to the Karakoram Mountains:" is "2,500".