What revision correctly combines these two sentences? mallory has two cats named salt and pepper. they like to take afternoon naps. a) mallory has two cats named salt and pepper; they like to take afternoon naps. b) mallory has two cats named salt and pepper; they like to take afternoon naps. c) mallory has two cats named salt and pepper; and they like to take afternoon naps. d) mallory has two cats named salt and pepper; and they like to take afternoon naps.