AMC 12A 2020 Problem 8

[system]

What is the median of the following list of 4040 numbers?

1,2,3, \ldots, 2020,1^{2}, 2^{2}, 3^{2}, \ldots, 2020^{2}

Answer Choices
A. 1974.5
B. 1975.5
C. 1976.5
D. 1977.5
E. 1978.5