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').
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Question: Meteorologists rely mainly on ____ types of satellites.\Question: Choose the right answer from options given a) four b) two c) ten d) three

Answer: b


Question: Paleontologists specialize in ____ main areas.\Question: Choose the right answer from options given a) eight b) five c) no d) six

Answer: b


Question: Some people say there are ____ types, as domed mountains can be a plutonic dome or a tectonic dome.\Question: Choose the right answer from options given a) seven b) six c) one d) eight

Answer:
d