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: Right whales are slow swimmers, averaging just ____ miles per hour.\Question: Choose the right answer from options given a) nine b) six c) two d) five

Answer: b


Question: Dunes are of ____ types - linear and parabolic.\Question: Choose the right answer from options given a) three b) four c) ten d) two

Answer: d


Question: Cocaine is worth about ____ times the value of gold and is sold only for cash.\Question: Choose the right answer from options given a) ten b) six c) eight d) nine

Answer:
c