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').
--------
Question: Millipedes have ____ pairs of legs on each body segment.\Question: Choose the right answer from options given a) seven b) ten c) six d) two

Answer: d


Question: Orangutans spend up to ____ hours a day eating or foraging for food.\Question: Choose the right answer from options given a) seven b) nine c) three d) six

Answer: d


Question: Calanoid copepods are only ____ millimeters long and eat phytoplankton, or plant plankton.\Question: Choose the right answer from options given a) seven b) five c) three d) two

Answer:
c