The process of making multiple identical copies of any template DNA is called

Polymerase chain reaction

The correct answer is Option (3) → Polymerase chain reaction

Polymerase Chain Reaction (PCR) is a technique used specifically for amplifying DNA, meaning it creates multiple identical copies of a specific DNA sequence. PCR involves repeated cycles of heating and cooling to denature the DNA, bind primers, and extend new strands, resulting in millions of copies of the target DNA.