A conditional expression in JavaScript refers to the ternary operator (? :), which is also known as the "immediate if" because it provides a quick, one-line alternative to an if-else statement.

Syntax of Ternary Operator:

condition ? expression1 : expression2;

• If condition is true, expression1 executes.
• If condition is false, expression2 executes.

Example:

let age = 18;

let canVote = (age >= 18) ? "Yes" : "No";

console.log(canVote); // Output: "Yes"

Why Not Other Options?

• (A) If-then-else statement → Incorrect. The ternary operator is not a full if-else statement but a single expression.
• (B) Alternative to if-else → Partially correct, but the ternary operator is a shortened version of if-else, not an exact alternative in all cases.
• (D) All of the above → Incorrect. Since A and B are not fully correct, this option is also incorrect.