Why was Texas annexation in 1845 a turning point in Texas and U.S. history?

Question

(1 point)
Texas helped to provide military and economic support to the United States.
Texans wanted a strong federal government and approved joining the United
States.
Great Britain wanted Texas to become a new colony, and the United States
offered to protect Texas.
The number of pro-slavery states exceeded the anti-slavery states after Texas
joined the United States.

Answer 1

The number of pro-slavery states exceeded the anti-slavery states after Texas joined the United States.