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

Output: b


Input: Consider Input: Dicots have ____ seeds leaves, whereas monocots have only one.\Question: Choose the right answer from options given a) four b) one c) seven d) two

Output: d


Input: Consider Input: Compounds contain ____ or more atoms in a fixed ratio.\Question: Choose the right answer from options given a) one b) two c) four d) zero


Output: b