Answer:
Option (a).
Explanation:
Restriction enzymes are also known as molecular scissors that are used to cleave the specific DNA strands. Two main types of restriction enzyme are restriction endonuclease and restriction exonuclease.
The restriction enzyme has the ability to cleave the DNA fragment at or near the specific sites. The ends generated by the restriction enzyme has the same length of both the strands.
Thus, the correct answer is option (b).