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').

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

Output: b


Input: Consider Input: Phytochemicals are non-nutritive substances, in that they contain ____ vitamins or minerals.\Question: Choose the right answer from options given a) four b) one c) no d) ten

Output: c


Input: Consider Input: Tyrannosaurs have tiny arms, with only ____ clawed fingers.\Question: Choose the right answer from options given a) ten b) two c) nine d) seven


Output: b