B.complex is an often prescribed vitamin? What is complex about it and what is its use?

Explanation

B complex is nót a single vitamin. It is argroup of vitamins 'B_1, B_2, B_6^2 B_12', folic acid, and nicotinic acid ete. Hence it is called 'B' -complex It is required to release enẻrgy from food and to promote healthy skin and muscles. Its deficiency causes beriberi (Vitamin 'B_-1' ) and anuemiaf Vitamin(B '_D' )