Which of the following statements accurately describes a hyperbolic paraboloid?
A) A hyperbolic paraboloid is a surface defined by a quadratic equation of the form z=x² + y².
B) A hyperbolic paraboloid can be described by the equation z=x² − y².
C) A hyperbolic paraboloid is a surface that looks like a dome and is defined by the equation z=xy.
D) A hyperbolic paraboloid is a surface that can be represented by a spherical coordinate system.