Match the following nutrients (Column-I) with their main sources (Column-II) and find out the correct answer using the codes given below :
Column-I(Nutrients) – Column-II (Sources)
(a) Carbohydrate – (i) Green leafy vegetables
(b) Calcium – (ii) Pulses
(c) Protein – (iii) Milk
(d) Iron – (iv) Wheat

Question

Accepted Answer

To explain why Option 1 is the correct answer for matching the nutrients in Column-I with their main sources in Column-II, let's break down the reasoning:

1. **Understanding the Matching:**
   - We need to match each nutrient from Column-I with its corresponding main source from Column-II. The correct matches are given by Option 1: (a)-iv, (b)-iii, (c)-ii, (d)-i.

2. **Explanation of Each Match:**
   - **(a)-iv:** This match indicates that the nutrient in position (a) corresponds to the source in position (iv). This is the correct pairing based on the factual relationship between the nutrient and its primary source.
   - **(b)-iii:** This match shows that the nutrient in position (b) is primarily sourced from the item in position (iii). This is a logical and factual match, as the nutrient is commonly found in this source.
   - **(c)-ii:** Here, the nutrient in position (c) is correctly matched with the source in position (ii). This pairing is supported by nutritional science, which identifies this source as a major provider of the nutrient.
   - **(d)-i:** Finally, the nutrient in position (d) is accurately paired with the source in position (i). This is a well-established match, as the source is known to be rich in the nutrient.

3. **Why Other Options are Incorrect:**
   - **Option 2:** This option suggests a different set of matches that do not align with the established relationships between the nutrients and their sources. Each pairing in Option 2 fails to accurately reflect the primary source of the nutrient.
   - **Option 3:** Similar to Option 2, the matches proposed in Option 3 do not correspond to the factual sources of the nutrients. The pairings are incorrect based on nutritional data.
   - **Option 4:** The matches in Option 4 also do not correctly align with the known sources of the nutrients. Each pairing is inconsistent with the factual information about nutrient sources.

In conclusion, Option 1 is the correct answer because it accurately matches each nutrient with its main source based on factual and logical reasoning. The other options fail to provide the correct pairings, making Option 1 the only valid choice.