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').

Ants have ____ noses.\Question: Choose the right answer from options given a) zero b) eight c) five d) three
c

Giraffes sleep less than ____ hours a day.\Question: Choose the right answer from options given a) two b) six c) seven d) ten
a

Most national flags use ____ or more of only seven basic colors.\Question: Choose the right answer from options given a) six b) one c) nine d) zero

b