Vitamin C tablets come in many forms containing mixtures of
     Vitamin C tablets come in many forms containing mixtures of ascorbic acid with other cut rounds. There are ____ that increase absorption of vitamin C into the body.  many dietary factors  several mineral formulations  no known factors  many natural sources  
  
  Solution
Answer - Option C - No known factors
There are no known factors which increases the absorption of vitamin C into the body.

