Which of the following factors made Kashmir a whole lot important for Pakistan?

مندرجہ ذیل میں سے کن عوامل نے کشمیر کو پاکستان کے لیے بہت اہم بنا دیا؟

Kashmir had its only road and railway Sinks with Pakistan

Kashmir is a continuation of the plains of Pakistan into mountains

River Indus, Jhelum and Chenab have their sources in Kashmir

None

Kashmir is a major national security issue for both India and Pakistan.

unable to make a choice between India and Pakistan.