Which process is also called as 'Dissimilatory Nitrate Reduction'?

Answer: Option C

Denitrification is the process that is also known as "Dissimilatory Nitrate Reduction." Which refers to the conversion of nitrate by using it as an electron acceptor.
Denitrification is a microbially facilitated process where nitrate is reduced and ultimately produces molecular nitrogen (N₂) through a series of intermediate gaseous nitrogen oxide products. Complete denitrification serves as an efficient N-removal pathway in the environment.