Question

name a disadvantage of the alamo mission during the battle
the high walls means the mx army had to scale the walls, but also exposed tx defenders once the mx army reached the walls
the alamos three acres were not enough for the 500 defenders during the battle
the high walls provided a good defense, however, the walls were thin, and crumbled during the battle
the alamo had over a dozen cannons, including an 18 - pounder that covered the city

Explanation:

The question is about identifying a disadvantage of the Alamo mission during the battle. The option "The high walls provided a good defense, however, the walls were thin, and crumbled during the battle" highlights a flaw (thin and crumbling walls) despite an initial positive (good defense). The other options either describe advantages (e.g., cannons covering the city) or incorrect information (three acres not enough for 500 defenders is not a known historical disadvantage related to the battle's outcome as much as the wall - related issue).

Answer:

The high walls provided a good defense, however, the walls were thin, and crumbled during the battle.