Although many citizens enjoy spacious and well-kept state parks, some fiscally conservative State Representatives are quick to point out that maintaining state parks cost far more than other state land.
A) maintaining state parks cost far more than other state land
B) state parks costs far more to maintain than other state land does
C) maintaining state parks costs far more than other state land
D) state parks cost far more to maintain than other state land does
E) to maintain state parks is far more expensive than other state land

Down to [spoiler]A/D, why not A?[/spoiler]