I'm confused on this question

Could someone me with number one you

Which of the following statements most accurately describes convergent evolution? the process in which two similar species evolve separately from each other and share similar characteristics the process in which a single species evolves into two or more new species the process in which two entirely different species evolve in response to each other the process in which two different species evolve separately from each other but still share similar characteristics

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?