Correct answer chosen still says incorrect answer and shows selected answer

[itbpl]

What is the URL where the issue is happening

https://roadmap.sh/ai/quiz/system-design-introductory-quiz-generation

What browsers are you seeing the problem on?

Chrome

Describe the Bug

Output from browser console (if any)

No response

Participation

• I am willing to submit a pull request for this issue.

[pardeep1916P]

Hi @arikchakma,

Looking closely at the screenshot attached in the report:

1. User selection: The user picked Option 2 ("Defining the high-level components, interfaces, and data flow to satisfy functional and non-functional requirements").
2. Evaluation result: The UI marked it with a red ❌ and labeled it as "Incorrect Answer".
3. AI Explanation: Right below the question, the AI explanation explicitly states: "Option 2 is correct because system design at an introductory level is about defining how high-level components, interfaces, and data flow interact to meet requirements..."

This indicates an off-by-one / 0-indexed vs 1-indexed mismatch in the AI quiz evaluation or JSON parsing on the roadmap.sh web app (e.g., the LLM returning correctOption: 2 which gets checked against 0-based array index 2 pointing to Option 3, or option shuffling occurring after the correct answer index is generated).

Since the AI quiz engine and web app are hosted on roadmap.sh's web platform rather than this content repository, this will need a quick check in the quiz handler on the web app codebase.

[jcanalesluna]

Hello!! This is solved now. Thanks for reporting