Answer:
c. EcoRV
Step-by-step explanation:
EcoRV -
It is the type 2 restriction endonuclease which is isolated from the strains of the E. Coli .
EcoRV is one of the commonly restriction enzyme .
It lead to blunt ends , and these blunt ends can be ligated into the blunt cloning site but with less efficiency than the sticky ends .
Hence , the enzyme which produces blunt ends is c. EcoRV .