The use of submarines during world war i resulted in the sinking of passenger liners. a quick end to the war. the poisoning of water supplies. greater support for air attacks.

The correct answer is the sinking of passenger liners.

One of the most famous instances of this would be the sinking of the Lusitania. The Lusitania was supposed to be a British passenger liner that was delivering goods off the coast of Ireland. However, this liner entered a war zone occupied by the German military. Upon seing this ship, the Germans used unrestricted submarine warfare in order to sink the Lusitania. This caused problems among several different countries including the US, as they had American citizens aboard that ship.

The correct answer is:

A. The sinking of passenger liners.

The use of submarines during World War I resulted in the sinking of passenger liners.

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imma have to go   the third option

sorry if i am wrong hope this

if i am right plz give me brainliest