Need some help its due in a few minutes

Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species

Sarah and john are having a discussion on genetic diversity. sarah believes that it happen over a long period of time. john it happens immediately. who is correct? a. sarah is correct because genetic diversity occurs over a long period of time. b. john is correct because genetic diversity occurs immediately. c. both are correct because genetic variation can occur or long period of time. d. neither are correct because genetic diversity occurs over any period of time

Which kingdom includes some organisms that have no nucleus and can live in an environment with an extremely high salt content