Answer:
The correct answer is - option C.
Explanation:
Heavy metals can alter the physiological and biochemical qualities or nature of the microbes or microorganisms. For instance, Chromium is able to denature the proteins of microbes and may cause oxidative damage.
Using heavy metals to control the microbe growth can be very dangerous as the ions of these heavy metals bind themselves to amino acid containing sulfur tightly and accumulate in the cells. This can be very toxic the most of the organisms besides the microbes.
Thus, the correct answer is - option C
