What are two reasons that the louisiana purchase caused a debate in the united states?

a.) people living in rural areas feared that they would be forced to move west.
b.) the louisiana purchase exposed the united states to the risk of a spanish invasion.
c.) many politicians felt that the us constitution did not allow such a purchase.
d.) military leaders believed that defending the new territory would be a burden.
e.) some politicians accused president thomas jefferson of acting against his own principles.