The correct answer is option C, that is, mammals were able to diversify to make use of the variety of habitats that were previously occupied by dinosaurs.
Adaptive radiation refers to the comparatively fast evolution of various species from a single common ancestor. Adaptive radiation usually takes place when a species enters a novel area and distinct traits influence its existence. An illustration of adaptive radiation is the progression of mammals after the annihilation of dinosaurs.
I think you might've forgotten something. There is no labels, pictures, or any options. Add some more stuff and I'd be able to help out.
It would be d. in your conclusion you want to state if your hypothesis was right or wrong and why.
