Which sentence would be inappropriate for a research paper about marine animal captivity? a) there's no way that keeping animals in cages is an okay thing to do; it's totally not. b) even some pets can be considered abused due to the small amount of space given to them in backyard cages. c) the recent documentary blackfish raised serious questions about how orca whales at seaworld are treated. d) some animals are kept in captivity in zoos, but other animals used as food products are kept in captivity as well.