what was the main reason the Comanche began raiding the Texas frontier?

Question

Americans where hostile towards the Comanche , so they intended to fight back
The Comanche wanted to show other Indian tribes in the region they were strong
The Comanche you were fearful of white people because they were very I’m familiar with the new settlers to the
region
The Comanche were fearful that the comancheria was going to be taken over by Settlers

Answer 1

I think it’s the a

Answer 2

I disagree.

Answer 3

its D