Based on the provided reference, the question "What vitamin is the son?" seems to be a play on words related to the phrase "sun" and the vitamin it helps the body produce. The reference states that:
The main source of vitamin D is summer sunlight on our skin.
Therefore, the implied answer is that the sun helps the body produce vitamin D, and if "sun" is metaphorically represented as a "son," then the answer to the question would be vitamin D.
Here is a breakdown:
- The Reference: The provided text explicitly links summer sunlight to vitamin D production.
- The Wordplay: The question uses the homophone "son" to represent "sun."
- The Conclusion: This connection suggests that the answer the question is looking for is the vitamin the sun helps produce: vitamin D.
Therefore, considering the wordplay, the "son" in the question refers to the sun, which is the main source of vitamin D for the body.