Which of the following is NOT a data type in C++? body { font-family: Arial, sans-serif; background: #f8f9fa; margin: 0; padding: 20px; } .quiz-container { max-width: 700px; margin: auto; background: #fff; padding: 25px; border-radius: 10px; box-shadow: 0px 4px 12px rgba(0,0,0,0.1); } h2 { color: #333; } .option { margin: 12px 0; padding: 10px; border: 1px solid #ccc; border-radius: 8px; cursor: pointer; transition: background 0.3s; } .option:hover { background: #f1f1f1; } input[type="radio"] { margin-right: 10px; } .btn { background: #007bff; color: #fff; padding: 10px 18px; border: none; border-radius: 8px; cursor: pointer; margin-top: 15px; } .btn:hover { background: #0056b3; } .result { margin-top: 20px; font-weight: bold; font-size: 18px; } .correct { color: green; } .wrong { color: red; } Which of the following is NOT a data type in C++? A) int B) float C) double D) string Submit function checkAnswer() { const options = document.getElementsByName("answer"); let selected = ""; for (const option of options) { if (option.checked) { selected = option.value; } } const resultDiv = document.getElementById("result"); if (selected === "") { resultDiv.innerHTML = "Please select an option."; resultDiv.className = "result wrong"; return; } if (selected === "D") { resultDiv.innerHTML = "✅ Correct! 'string' is not a built-in data type in C++."; resultDiv.className = "result correct"; } else { resultDiv.innerHTML = "❌ Wrong! Try again."; resultDiv.className = "result wrong"; } }