Why was the battle of the capes so important for the defeat of the british at yorktown?

the defeat demoralized the british

it prevented the british from being evacuated or resupplied

it inspired the americans to fight harder

it did not have any real impact

It prevented the British rom evacuation or resupplied.

Explanation:

The battles of capes is one of the most decisive battles in U.S history, it allowed for more french and american troops to be delivered and supplies.  But it didn't allow the british to resupply its troops.

i believe it was the shinto