If Asked About the Relationship of Vitamin D to Autoimmune

If asked about the relationship of vitamin D to autoimmune disease,the best information for a dietetic professional to provide is ____.

A) that the evidence does not support a relationship at this time
B) that the evidence is only in animals, not humans
C) that some evidence suggests a protective effect of vitamin D
D) to take a supplement containing 2000 IU vitamin D each day