What happens during translation?
copying of dna to produce dna copying of dna to produce dna
b. copying of dna to produce mrna
c. copying of dna to produce trna
d. polypeptide synthesis

The answer is D, polypeptide synthesis.

Translation means translating the code in RNA to actual protein chains. In other words, this is the process of synthesizing peptide chains (aka polypeptides). 

Think of it as "translating" the genetic message into actual materials used in the body. 

The Biggest Bodies of Water: Oceans

The Pacific Ocean ranks as the largest, followed by the Atlantic, Indian, Southern, and Arctic.