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: Cats have ____ sets of vocal cords.\Question: Choose the right answer from options given a) zero b) nine c) two d) three

Answer: c


Question: Matter exists in ____ forms, solid, fluid and plasma.\Question: Choose the right answer from options given a) ten b) nine c) three d) five

Answer: c


Question: Polyploids are plants with more than ____ sets of chromosomes.\Question: Choose the right answer from options given a) two b) seven c) one d) no

Answer:
a