Answer: Option (A) is the correct answer.
Explanation:
When monomers in a chemical reaction combine together then it results in the formation of long chains. This process is known as polymerization.
For example, rubber and plastic are formed by polymerization.
Esterification is defined as a process in which esters are formed when an acid is heated with alcohol.
Saponification is defined as a process in which aqueous alkali is heated with a fat or oil resulting in the formation of a soap.
Fermentation is a process in which bacteria like microorganisms, yeast etc help in the breakdown of a substance into simpler substances.
Thus, we can conclude that polymerization is an organic reaction which produces rubber and plastics.
