Which trace element acts as a cofactor for the enzyme superoxide dismutase, which helps to protect cells from oxidative damage?

A Copper
B Zinc
C Manganese ✓
D Selenium

Explanation

Manganese acts as a cofactor for the enzyme superoxide dismutase, which helps to protect cells from oxidative damage by converting superoxide radicals into hydrogen peroxide and oxygen.

Source

Scientific literature on antioxidant functions
Minerals, and Trace Elements Minerals and Trace Elements Antioxidant Functions Medium MEDICAL Confidence: high