According to Chargaff's rule of base pairing, which of the following is true about DNA? a. [tex]|\mathrm{A}|=|\mathrm{T}|[/tex], and [tex]|\mathrm{C}|=|\mathrm{G}| \mathrm{b} .|\mathrm{A}|=[/tex] [tex]|C|[/tex], and [tex]|T|=|\mathrm{G}| \mathrm{c} .|\mathrm{A}|=|\mathrm{G}|[/tex], and [tex]|\mathrm{T}|=|\mathrm{C}| \mathrm{d} .|\mathrm{A}|=|\mathrm{T}|=[\mathrm{C}]=|\mathrm{G}|[/tex]