The correct answer is A. A successive chain of ancestor and descendant populations perpetuating through generations.
Explanation:
A "lineage" is a term used in biology and evolution to refer to a sequence or chain of organisms that are related to each other as it includes an ancestor and all descendants from it through generations. In this way, each organism evolved from the organism that is before this in the lineage and derives in new organisms that appear after it.
Due to this, lineages depict the process of evolution over time and are also sections of evolutionary trees which are major structures that show the evolution of species. Considering this, it can be concluded a lineage is "A successive chain of ancestor and descendant populations perpetuating through generations".
