Which is an accurate comparison of the bases found in the birds as opposed to the the bases found in flowers?

In birds, the primary bases found in their genetic material are adenine (A), cytosine (C), guanine (G), and thymine (T), similar to other vertebrates. In flowers, which are part of plants, the same four bases are present in their DNA. However, flowers may also contain additional components, such as RNA bases like uracil (U) in their RNA, but the core DNA bases remain consistent across both groups. Thus, the main difference lies not in the bases themselves, but in their biological functions and expressions in different organisms.