Johnny's teacher asked him to explain how to make a wet-mount slide to the rest of the class. Here is Johnny's response: "Well, you start by putting a few drops of water on a clean slide. Once you have obtained your specimen, you carefully place your specimen down on the drops of water on top of the slide at a 45 degree angle. You add a few more drops of water, then lower the cover slip over the specimen."
   
Was Johnny's description correct?
 
A. No, you don't need to add water to the slide after adding the specimen.
 
B. No, he forgot to heat up the water before adding it to the slide.
 
C. Yes, he did not make any mistakes.
 
D. No, the cover slip needs to be lowered at a 45 degree angle, not the specimen.