Davy Crockett died at the battle of Alamo. Option A is correct.
David Crockett was an American folk hero, frontiersman, soldier, and politician. He is generally referred to as "King of the Wild Frontier". He represented Tennessee in the U.S. House of Representatives and served in the Texas Revolution.
Davy Crockett was involved in the Texas Revolution and was killed at the Battle of the Alamo in March.