What type$($s$)$ of non$-$covalent interaction determine$($s$)$ the specificity of base$-$pairing within a DNA double helix?

A$.$ London dispersion forces only

B$.$ Charge$-$charge interactions only

C$.$ Hydrogen bonds only

D$.$ London forces and charge$-$charge interactions only

E$.$ London forces and hydrogen bonds only

F$.$ Charge$-$charge interactions and hydrogen bonds only

G$.$ London forces, charge$-$charge interactions, and hydrogen bonds