Answer:
The correct answer is B. Spain wanted to protect the border of New Spain so it established missions.
Step-by-step explanation:
During the colonial era, Spain controlled the territory of Mexico and the current southwest of the United States, in a colony that was called New Spain.
This colony in turn bordered on the French and British possessions on the mainland, especially with Louisiana and the Oregon Territory. This made territorial conflicts a very concrete possibility, which made it necessary to carry out dissuasive actions to prevent these situations. Thus, the Spanish began to establish missions, presidios and military camps in the border areas between Texas and Louisiana, and in northern California, with the objective of populating the border areas and dissuading other powers from entering their territory.