Given below are four jumbled sentences. Select the option that gives their correct order.

A) The closest natural relatives to the extinct dinosaurs which means that we live with dinosaurs too.

B) Those had been extinct for almost 66 million years before the first humans began to make their mark.

C) The dinosaurs that comingled with our ancient ancestors were modern birds.

D) The dinosaurs the earliest humans lived among were not the huge lumbering lizards we most commonly think of when we see the word.