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: Gasoline is ____ times as expensive as in the United States.\Question: Choose the right answer from options given a) two b) four c) three d) ten

Output: c


Input: Consider Input: Pluralism Comes in ____ forms.\Question: Choose the right answer from options given a) ten b) four c) six d) two

Output: d


Input: Consider Input: Baleen whales have ____ and toothed whales have one.\Question: Choose the right answer from options given a) seven b) nine c) three d) two


Output: d