Which one of the following is not a Vitamin?

• Folate is the natural form of vitamin B9, water- soluble and naturally found in many foods like citrus fruits. It is also added to foods and sold as a supplement in the form of folic acid • Vitamin B5, also called pantothenic acid, is one of 8 B vitamins. All B vitamins help the body convert food (carbohydrates) into fuel (glucose), which the body uses to produce energy. These B vitamins, often referred to as B complex vitamins, also help the body use fats and protein. • Ascorbic acid (vitamin C) is used as a dietary supplement when the amount of ascorbic acid in the diet is not enough. • Oleic acid is an omega-9 fatty acid. It can be made by the body. It is also found in foods. Highest levels are found in olive oil and other edible oils. It is not related to any Vitamin. Hence option B is correct answer.