Final answer:
A percent can be expressed as a fraction with a denominator of 100, making it a rational number.
Step-by-step explanation:
A percent is a way of expressing a fractional amount using a whole divided into 100 parts. A percent is a ratio whose denominator is 100. A percent can be converted to a fraction by writing the value of the percent as a fraction with a denominator of 100 and simplifying the fraction if possible. Therefore, a percent can be expressed as a rational number, making option A. Yes, because it can be expressed as a fraction, the correct answer.