text: <unk>  is a taxon containing the placental mammals, such as humans. The sister group of<unk>  is Metatheria, which includes marsupials and their extinct relatives.
option_0: Eutheria
option_1: Adventitia
option_2: Microtia
option_3: Adenoid hypertrophy
option_4: Milia
option_5: Synechia 
option_6: Vocal folds
option_7: Trachoma