Solve the Problem
-The Number of Mosquitoes $\mathrm { M } ( \mathrm { x } )$

Multiple Choice

Solve the problem
-The number of mosquitoes $\mathrm { M } ( \mathrm { x } )$ , in millions, in a certain area depends on the June rainfall $\mathrm { x }$ , in inches: $\mathrm { M } ( \mathrm { x } ) = 2 \mathrm { x } - \mathrm { x } ^ { 2 }$ . What rainfall produces the maximum number of mosquitoes?

A) 0 in.
B) 2 in.
C) 1 in.
D) 4 in.