This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition and health, Subject name: Social & Preventive Medicine
Dates are rich source of - 
Select and explain. 
A. Calcium, B. Iron, C. Vit C, D. Carotene
A: Calcium
Answer: A: Calcium 
Explanation: In dates calcium present is 120mg,vitamin C is 3,carotene is 44mg per 100mg of datesREF. PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICAL 21ST EDITION. PAGE NO - 581