Given a sentence with a missing word, pick the answer option that best fills out the missing word in the sentence. Indicate each answer with its index ('a', 'b', 'c', 'd').

Respiratory therapists complete ____ to four years of education.\Question: Choose the right answer from options given a) one b) nine c) zero d) two
d

Conflict occurs between when ____ people have a car accident.\Question: Choose the right answer from options given a) no b) eight c) two d) nine
c

Tobacco use is to blame for nearly ____ in three cancer deaths in the United States every year.\Question: Choose the right answer from options given a) six b) zero c) ten d) one

d