Correct Answer: Brahmaputra

Solution : The correct option is the Brahmaputra .

The Brahmaputra River is one of the major rivers in Asia. In terms of the storage capacity of usable water, it has the least capacity. It depends on various factors such as geographical features, climate and human activities."Least storage capacity of usable water" refers to the river or water body with the smallest capacity to hold water that is suitable for various uses, such as drinking, irrigation and industrial purposes.