What is the median of the following list of 4040 numbers: $$ 1,2,3, \ldots, 2020,1^{2}, 2^{2}, 3^{2}, \ldots, 2020^{2}$$? (2020 AMC 10A Problems, Question \#11) 
选项为:A:$$1974.5$$  B:$$1975.5$$  C:$$1976.5$$  D:$$1977.5$$  E:$$1978.5$$  请回答其中一个选项.