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').

Embrasures have ____ functions.\Question: Choose the right answer from options given a) three b) seven c) zero d) nine
a

Today there are ____ basic classifications of sausage.\Question: Choose the right answer from options given a) five b) four c) six d) one
a

Children of alcoholics are ____ times more likely than other people to become alcoholics themselves.\Question: Choose the right answer from options given a) zero b) four c) nine d) two

b