function checkAnswer() {
var answerElement = document.querySelector(‘input[name=”q1″]:checked’);
var userAnswerElement = document.getElementById(“answer”);
var resultElement = document.getElementById(“result”);

if (answerElement && userAnswerElement && resultElement) {
var answer = answerElement.value;
var userAnswer = userAnswerElement.value.trim().toLowerCase();

if (userAnswer) {
if (userAnswer === “data” && answer === “c”) {
resultElement.innerHTML = “Correct!”;
} else {
resultElement.innerHTML = “Incorrect!”;
}
} else {
resultElement.innerHTML = “Please enter an answer”;
}
}
}