Correct Answer: chromium

Solution : The correct option is Chromium .

Chromium is not present in high concentrations in human blood. It is classified as a trace element since it is found in extremely low concentrations. For numerous activities such as glucose metabolism, and insulin sensitivity, the human body requires only a trace quantity of chromium. Chromium's hazardous effects include mitochondrial injury, and DNA damage in blood cells, which leads to carcinogenicity.