(who\whoever)leaves the room last ougth to turn off the lights.选哪个?

(who\whoever)leaves the room last ougth to turn off the lights.选哪个?
(who\whoever)leaves the room last ougth to turn off the lights.选哪个?

(who\whoever)leaves the room last ougth to turn off the lights.选哪个?
whoever
意思是no matter who,无论是谁.
WHO的话没这个意思,而且是个错误句子