Concept:Evolution is supported by several independent lines of evidence drawn from different areas of biology.
Explanation:Fossils of extinct organisms show how life forms have changed over millions of years.
They also reveal transitional stages between ancestral and modern species.
Homologous structures in different species are body parts with a common evolutionary origin, such as the forelimbs of humans, whales, and bats.
These structures may perform different functions, but their similar underlying anatomy points to descent from a common ancestor.
Similarities in embryonic development are also evidence of evolution because related organisms often pass through comparable developmental stages before birth or hatching.
Since all three listed options independently support evolution, the most complete answer is the option that includes all of them.
Answer:Option A: All of the above.