The US Dollar is currently a "Fiat" Currency. This means the Dollar has value because the government declares it to have value. What phenomena does this explain?

A. The Market Value of the Quarter being higher than a $20 bill, yet the $20 being worth more.
B. The Intrinsic Value of the Quarter being higher than a $20 bill, yet the $20 being worth more.
C. The Facial Value of the Quarter being higher than a $20 bill, yet the $20 being worth more.