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: Ants have ____ stomachs.\Question: Choose the right answer from options given a) two b) nine c) four d) seven

Answer: a


Question: Granite occurs in ____ separate masses.\Question: Choose the right answer from options given a) two b) eight c) nine d) no

Answer: a


Question: Diamonds can be from ____ to hundreds times harder than corundum.\Question: Choose the right answer from options given a) no b) ten c) three d) eight

Answer:
b