I believe the correct answer is governor.
The Tenth Amendment gives the rights not expressly delegates to the federal government to the STATES.
Answer:
C.
Explanation:
The value of gold and silver did decrease. While D. is a tempting choice, it is incorrect because it did not effect the DEVELOPMENT of gold and silver. A and B aren't correct for obvious reasons, and that only leaves C. Therefore I have proven this answer to be correct.