In northern latitudes people have less melanin to promote the manufacture of which vitamin?​

A) ​E
B) ​D
C) ​A
D) ​C

Melanin

A pigment found in most organisms, responsible for coloration of the skin, hair, and eyes, and protection against UV radiation.

Vitamin D

A fat-soluble vitamin essential for healthy bones and immune function, obtained from sunlight exposure, food, and supplements.