Pakistan is home to this major river system. ganges indus mekong amu darya

The answer to the question above is Indus River.
The Indus River is one of the longest rivers in Asia, which runs through China, India, and Pakistan. It originates from the Tibetan Plateau and ends into the Arabian Sea. It is the national river of Pakistan.

Ithink the answer is b

Answerseafloor spreading;