The right option is; D) thymine
This nitrogenous base, adenine, pairs with thymine
Nitrogenous bases are organic molecules that contain nitrogen and possess similar chemical properties of a base. There are various nitrogenous bases but the five most important ones that are located in DNA and RNA are adenine, guanine, cytosine, thymine, and uracil. Each of these bases has a complementary base that it pairs with to form DNA and RNA. The complementary base of adenine is thymine i.e adenine pairs with thymine to form DNA and RNA.
