Hob ‧ son’s choice /ˌhɒbs ə nz ˈtʃɔɪs $ ˌhɑːb-/ BrE AmE noun [uncountable]
[ Date: 1600-1700 ; Origin: Probably from Thomas Hobson (1554-1631), who rented out horses and would only let his customers take the horse nearest the door ]
a situation in which there is only one thing you can do, so you do not really have any choice at all