Use synthetic division to determine the quotient and remainder of ((x² - 9x + 20) ÷ (x - 4)):

a) Quotient: (x - 5), Remainder: (0)
b) Quotient: (x + 5), Remainder: (0)
c) Quotient: (x - 5), Remainder: (5)
d) Quotient: (x + 5), Remainder: (5)