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').

Paleontologists specialize in ____ main areas.\Question: Choose the right answer from options given a) eight b) five c) no d) six
b

French women are ____ times more likely to have accidents and commit suicides.\Question: Choose the right answer from options given a) no b) three c) one d) five
d

Spring tides happen every ____ weeks.\Question: Choose the right answer from options given a) six b) four c) three d) two

d