Which of the following trace elements is essential for the proper functioning of the immune system?

A Copper
B Zinc ✓
C Selenium
D Chromium

Explanation

Zinc is an essential trace element that plays a crucial role in the proper functioning of the immune system, as it is involved in the activation of immune cells and the regulation of inflammation.

Source

National Institutes of Health
Minerals and Trace Elements Minerals and Trace Elements Immune Function Medium MEDICAL Confidence: high