IdentifythetopicsfromA,B,andC31.Agrowingnumberofpeoplefeelthatanimalsshouldnotbeexploitedbypeopleandthattheyshouldhavethesamerightsashumans,whileothersarguethathumansmustemployanimalstosatisfytheirvariousneeds,includingusesforfoodandresearch.(from《英语思辨阅读》)
B
Satisfaction of human needs
C
Relations between animals and humans