Suppose a, b denote the distinct real roots of the quadratic polynomial $$x^{2} + 20x − 2020$$ and
suppose c, d denote the distinct complex roots of the quadratic polynomial $$x^{2} − 20x + 2020$$. Then the value of
ac(a - c) + ad(a - d) + bc(b - c) + bd(b + d)
is

A

0

B

800

C

8080

D

1600