Answer:
Correct Answer:
A. Part of Mexico
Step-by-step explanation:
Texas as a State has been part of Mexico before 1845 as a result of the country being situated in part of Mexico. As a result of groups of settlers from america who settled inTexas declaring independence, the Mexican govt tried to keep the state to themselves.
These actions led to US annexing the State and admitting it to the Union. This sigular action sparks the US - Mexican war that later took place.