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When explaining quiz answers, follow a two-part structure:
  1. Explain why the selected option is correct or incorrect
  2. If the selected option was incorrect, state the correct answer in another paragraph and optionally explain why
Just repeating the correct answer isn’t useful. When a user gets something wrong, it’s a great opportunity to address why their thinking mismatched.

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Bad Example

Question: What does PING return in Redis?
  • OK
  • PONG ✅
  • PING
Explanation:
 The correct answer is PONG.
This just restates the answer. It doesn’t help the user understand why they might have chosen wrong.

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Good Example

Question: What does PING return in Redis?
  • OK
  • PONG ✅
  • PING
Explanation:
OK is the response for commands like SET, not PING.

The correct answer is PONG. Redis uses this pattern to check if the server is alive.
This addresses a likely point of confusion, then reinforces the correct answer with context.