The Decree of April 6, 1830 — -stopped immigration from the United States
-used generous land grants to encourage Mexican and European families to come to Texas
-placed customs duties on goods made in foreign nations

Which is the MOST likely reason this decree was an important link in the chain of events leading to the Texas Revolution?

It stopped the colonies in Texas from growing.
It made the Texas colonists suspicious of one another.
It threatened the prosperity of the Texas colonies.
It enabled the Mexican government to interfere in the lives of Texas colonists.