Answer:
B. Missions were used as a way to claim land.
Step-by-step explanation:
At that time, the Spanish colony often use missionaries as some sort of camoflagoue to obtain ownership within Texas.
The missionaries were sent to spread Christianity, but at the same time it provide gateways from settlers from Spain to come into Texas territory and formed a settlement there. After accepted into the community, the Spanish settlers start to be eligible for land acquisitions made by the Texas government and strengthening Spanish ownerships over some territories in Texas.