Final answer:
Option (D), The dinosaur renaissance occurred due to a combination of new discoveries, innovative ideas, and advanced techniques, which together revolutionized the field of paleontology and our understanding of dinosaurs.
Step-by-step explanation:
The dinosaur renaissance took place because of D. all of the above: new discoveries, new ideas, and new techniques. This period was marked by a significant shift in the scientific community's understanding of dinosaurs. Influential new ideas emerged, such as recognizing dinosaurs as active, dynamic creatures rather than sluggish, cold-blooded reptiles.
Revolutionary new techniques in studying dinosaur bones and reconstructing fossilized remains led to these insights. Additionally, fresh discoveries of fossils provided a wealth of evidence that reinvigorated the field of paleontology and reshaped theories about dinosaurs' biology and extinction.