Some dinosaurs had feathers although they could not fly bud birds have feathers that help them to fly. In the context of evolution, this means that

Question

$\begin{array}{1 1} (a)\; \text{There is no evolutionary connection between reptiles and birds} \\ (b)\; \text{Reptiles evolved from birds} \\ (c)\; \text{Feathers are homologus structures in both the organisms} \\ (d)\; \text{Birds have evolved from reptiles} \end{array}$