An example of an exponent from your options is 2. An exponent is a number that indicates how many times to multiply the base number by itself. For example, in the expression \(2^3\), the number 2 is the base, and 3 is the exponent, meaning \(2\) multiplied by itself \(3\) times (i.e., \(2 \times 2 \times 2\)).
None of the other options represent exponents directly.