The correct answer is A. The remains or traces of an organism preserved from the geologic past
Explanation:
Fossils are evidence of organisms that live in the past especially those that lived during previous geological eras. A fossil includes any remains of an organism such as bones, skin, eggs or similar but also any traces for example molds or imprintings of organisms that have preserved over time due to multiple processes such as carbonization. Fossils are mainly studied by paleontologist to determine the type of organisms that do no longer exist and the relationship of those with modern ones especially plants and animal species. According to this, fossils are " remains or traces of an organism preserved from the geologic past".
