How do fossils of the animal Archaeopteryx provide evidence that birds evolved from one group of dinosaurs?

a.Fossils of Archaeopteryx have traits of both dinosaurs and birds.

b.Fossils of Archeopteryx have traits that show they were better able to survive than dinosaurs but less able to survive than birds.

c.Fossils of Archaeopteryx are older than fossils of birds but younger than fossils of dinosaurs.

d.Fossils of Archeopteryx were discovered near fossils of both dinosaurs and birds.

a. Fossils of Archaeopteryx have traits of both dinosaurs and birds.

This is because Archaeopteryx had features of both dinosaurs (such as teeth, a long bony tail, and claws on its wings) and birds (such as feathers and a wishbone). This combination of traits suggests a direct evolutionary link between dinosaurs and birds, supporting the theory that birds evolved from a group of dinosaurs.