Final answer:
Dinosaur fossils include tracks, eggs, skin impressions, gastroliths, and coprolites (fossilized feces). The correct answer to the question is option A.
Step-by-step explanation:
Dinosaur fossils include a variety of evidence from the past, not just the bones or skeletons. Trace fossils are important indicators of ancient life and behaviors and include examples such as tracks, eggs, skin impressions, gastroliths, and coprolites.
Gastroliths are highly polished stones that were used by dinosaurs to aid in digestion and are found in locations far from their geological source, indicating the long distances over which dinosaurs may have traveled. Coprolites are fossilized feces that provide insight into the diet and digestive processes of ancient creatures. Both of these can provide a wealth of information to paleontologists who study the lifestyles and environments of ancient organisms.
When it comes to the multiple-choice question, option A is the correct answer as it encompasses the wide array of trace fossils along with the typical skeletal remains. Hand-axes, which are mentioned in option B, are human-made tools and are not found among dinosaur fossils. Therefore, the comprehensive inclusion of dinosaur fossils is best described by option A: tracks, eggs, skin impressions, gastroliths, and coprolites.