Answer:
Antarctica used to be located closer to the equator.
Step-by-step explanation:
The statement that best explains the discovery of fossils of plants found in tropical rainforests in Antarctica is "Antarctica used to be located closer to the equator."
According to geological history, during the Rodinia age around 1 billion years ago, the Antarctica continent can be found near the position of the equator, thereby making it experience a favorable tropical climate in the past.