Answer:
Use of restriction enzymes.
Step-by-step explanation:
Restriction enzymes are also known as molecule scissors in the recombinant DNA technology. Two main types of restriction endonuclease are exonuclease and endonuclease.
The main function of the endonucleases is to cut the DNA fragments at the specific site. In the diagram, the restriction enzymes function has been shown. The restriction site of the enzyme has been specified and depicted in the picture.
Thus, the correct answer is option (C).