Which trace element plays a crucial role in the functioning of the immune system and is a component of the enzyme superoxide dismutase?

A Copper
B Zinc ✓
C Selenium
D Manganese

Explanation

Zinc is an essential trace element that plays a vital role in the functioning of the immune system, and it is a component of the enzyme superoxide dismutase, which helps protect cells from oxidative damage.

Source

National Institute of Nutrition
Minerals and Trace Elements Nutrition and Biochemistry Immune Function Medium MEDICAL Confidence: high