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: Japan is a highly urbanised country, with approximately three in every ____ people living in cities.\Question: Choose the right answer from options given a) seven b) two c) four d) eight

Output: c


Input: Consider Input: Elephants give birth to ____ calf every four to nine years on average.\Question: Choose the right answer from options given a) ten b) one c) eight d) six

Output: b


Input: Consider Input: Acupressure is similar to acupuncture except ____ needles are used.\Question: Choose the right answer from options given a) six b) no c) ten d) five


Output: b