Q: 85 (CDS-I/2002)

Consider the following substances:
1. Ascorbic acid
2. Folic acid
3. Nicolinic acid
4. Pantothenic acid Wbich of these are vitamins?
question_subject: 
Science
question_year: 
2002
question_exam: 
CDS-I
stats: 
0,904,608,920,144,312,136