It would be that "d. They refused to baptize native converts into the Christian faith", since the Spanish viewed this as a way of solidifying their efforts of religious conversion.
The concept of nullification is a "legal theory that a state has the right to nullify, or invalidate, any federal law which that state has deemed unconstitutional with respect to the United States Constitution (as opposed to the state's own constitution)."
I believe the answer to this could be C.XVII
The civil service reform act of 1978 is intended to provide Federal managers with the flexibility to improve Government operations and productivity while, at the same time, protect employees from unfair or unwarranted practices.
