What is the correct pairing of the nitrogenous bases of the rungs of the DNA ladder?

In the DNA ladder structure, the nitrogenous bases pair specifically as adenine (A) with thymine (T) and cytosine (C) with guanine (G). This complementary pairing is crucial for the stability of the DNA double helix and is governed by hydrogen bonding, with A forming two hydrogen bonds with T and C forming three hydrogen bonds with G.