Which of the following statements is correct with respect to a unit of an enzyme?

• A. One unit of enzyme is defined as the amount of enzyme required to digest 1miligram of standard DNA in a specific time of 1hr and under given temperature conditions
• B. The amount of enzyme required doesn’t vary with the number of sites present in the DNA
• C. If more number of sites is there in the DNA more units of enzyme are required in comparison to same amount of DNA with fewer sites
• D. The amount of enzyme required for digestion of DNA with less number of sites is more than that of more number of sites in the same amount of DNA