What are the domain and range of the quadratic parent function?
a. the domain is all real numbers, and the range is nonnegative real numbers (y ≥ 0).
b. the domain is all real numbers, and the range is positive real numbers (y > 0).
c. the domain is nonnegative real numbers (y ≥ 0), and the range is all real numbers.
d. the domain is positive real numbers (y > 0), and the range is negative real numbers (y < 0).