If the expression z⁵ - 32 can be factorized into linear and quadratic factors over real coefficients as:

a) z² - 2z + 4 (linear), (z + 2)(z² - 2z + 4) (quadratic)
b) z - 2 (linear), (z - 2)(z² + 2z + 4) (quadratic)
c) z - 2 (linear), (z + 2)(z² - 2z + 4) (quadratic)
d) z² - 2z + 4 (linear), (z - 2)(z² + 2z + 4) (quadratic)