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').

Elephants rise ____ inches when they inhale.\Question: Choose the right answer from options given a) two b) five c) one d) eight
a

Cows can be up to ____ times more active than normal while in heat.\Question: Choose the right answer from options given a) eight b) nine c) two d) six
a

Bedbugs can live for ____ months without feeding.\Question: Choose the right answer from options given a) two b) eight c) six d) nine

c