Given below are two statements:
Statement I:If BOD is 4 ppm and dissolved oxygen is 8 ppm, then it is a good quality water.
Statement II: If the concentration of zinc and nitrate salts are 5 ppm each, then it can be a good quality water
In the light of the above statements, choose the most appropriate answer from the options given below:

Options

A. Both the statements I and II are incorrect
B. Both the statements I and II are correct
C. Statement I is incorrect but Statement II is correct
D. Statement I is correct but Statement II is incorrect