Q. Which file contains the root React component by default?

  • (A) App.js
  • (B) Main.js
  • (C) Index.html
  • (D) Index.js
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✅ Correct Answer: (A) App.js
Explanation: App.js usually contains the root component rendered in Index.js.

Published by Mr. Dubey ⭐ 109.99K Points at 08-Jun-2025 03:21 pm in React Js

Explanation by: Mr. Dubey
App.js usually contains the root component rendered in Index.js.

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