Which of the following statements best describes a system of nonlinear equations? Question content area bottom Part 1 Choose the correct answer below. A. A system of nonlinear equations is a system that contains at least one equation that is nonlinear. B. A system of nonlinear equations is a system in which all equations must be nonlinear. C. A system of nonlinear equations is a system in which at least one equation includes a squared variable term. D. A system of nonlinear equations is a system that contains at least one linear equation