Which of the following explains why national security was an issue in the annexation between Texas and the U.S.?(1 point)

Responses

Mexico agreed that the border of Texas was the Rio Grande, as the Treaty of Velasco stated.
Mexico agreed that the border of Texas was the Rio Grande, as the Treaty of Velasco stated.

Rangers moved to Texas to protect against an uprising if Mexico tried to rebel.
Rangers moved to Texas to protect against an uprising if Mexico tried to rebel.

Mexico did not agree to the validity of the Treaty of Velasco after the Texas Revolution.
Mexico did not agree to the validity of the Treaty of Velasco after the Texas Revolution.

Mexico thought that Santa Anna signed the Treaty of Velasco of his own free will.

Wrong. The correct answer is "Mexico did not agree to the validity of the Treaty of Velasco after the Texas Revolution." (just did the assignment)

Rangers moved to Texas to protect against an uprising if Mexico tried to rebel.