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

Human females have ____ X chromosomes.\Question: Choose the right answer from options given a) two b) six c) one d) eight
a

Women are ____ times more likely to get a UTI than men.\Question: Choose the right answer from options given a) three b) eight c) ten d) six

b