The Quiz component is a React-based quiz application that supports multiple languages. Users can select a language, answer questions, and view their score at the end of the quiz.

• index: Tracks the current question index.
• question: Holds the current question object.
• lock: Prevents multiple answers for a single question.
• score: Tracks the user's score.
• result: Indicates if the quiz has ended.
• language: Stores the selected language.

• Option1, Option2, Option3, Option4: References for each option to handle user interaction.

• selectLanguage(lang): Sets the selected language and loads the first question in that language.

• checkAns(e, ans): Checks the selected answer against the correct answer. Updates the score if correct and provides immediate feedback.

• next(): Moves to the next question when the "Next" button is clicked. If on the last question, displays the final score.

• reset(): Resets the quiz to the initial state, allowing users to start over.

If no language is selected, renders language selection buttons (English, Hungarian, German).

Once a language is selected, renders:

• Quiz title
• Current question with options
• Next button to proceed to the next question
• Score and reset button when all questions are answered