Suppose x, y, and z are all rational numbers. Is LaTeX: \frac{z}{\sqrt{x^2-y^2}}z x 2 − y 2 a rational number? Explain your answer. Group of answer choices No; a quotient of rational numbers is not always rational. Yes; the square and square roots cancel out, leaving a rational number. There is not enough information to answer the question. No; the square root of any number is irrational.