Watching TV before dozing off is one of the major cause of sleep deprivation, a condition that bothers one _____ three people and linked to increase risk of obesity, heart disease, and depression.
A)of
B)in
C)to
D)after
這題應該是要說三個中有一個人會因看電視而造成睡眠上的問題，想請問A和B的差別

one of the major causeS

Of感覺像在說有問題的只有這三人

是說這句之中的that表示什麼阿~?

sleep deprivation, a condition that~名詞 , 同為語 關代位

got it!