After the Agar Plate Has Been Inoculated and Properly Labeled

After the agar plate has been inoculated and properly labeled, what must you do with the plate?

A) Nothing, agar plates require nothing special. 
B) Place it back with the other agar plates in the original package. 
C) Leave it right-side-up, and place in the proper environment for growth. 
D) Turn it upside down, and place in the proper environment for growth.