What is the longest glacier in the Karakoram and second-longest in the world’s non-polar areas...? Mcqs

What is the longest glacier in the Karakoram and second-longest in the world’s non-polar areas...?

(A) Hispar glacier

(B) Siachen glacier

(C) Biafo glacier

(D) None of these

Source: This question is taken from the Punjab Police Junior Clerk BS-11 PPSC Past Paper