The world’s longest glacial system outside the polar regions (the Biafo Glacier) is located in__________?

A. America
B. Canada
C. Iceland
D. Pakistan

The Biafo Glacier is a 67 km (42 mi) long glacier in the Karakoram Mountains of Gilgit Baltistan, Pakistan which meets the 49 km (30 mi) long Hispar Glacier at an altitude of 5,128 m (16,824 ft) at Hispar La (Pass) to create the world’s longest glacial system outside the polar regions.