Given below are two statements, one abelled us Assertion (a) and the other as Reason (R), Assertion (A): Most of the vitamins are not synthesised in human body Reason (R): Human organs synthesise only essential micronutrients. Thesive only Select the correct answer from the codes given below Codes:

Assertion (A): Most vitamins are not synthesised in human body. This statement is true. With a few exceptions like Vitamin D (synthesised in skin upon sunlight exposure) and Vitamin K and biotin (synthesised by gut bacteria), most essential vitamins must be obtained directly from the diet because the human body lacks the necessary metabolic pathways to synthesize them in sufficient quantities. Reason (R): Human organs synthesise only essential micronutrients. This statement is false. By definition, essential nutrients (including essential micronutrients like most vitamins and minerals) are those that the body cannot synthesize or cannot synthesize in sufficient amounts, and therefore must be obtained from the diet. The body does synthesize many non-essential molecules, but it primarily relies on dietary intake for essential micronutrients. Furthermore, the statement says "synthesise only essential micronutrients," which is incorrect; the body synthesizes countless other molecules necessary for life that are not classified as essential micronutrients.