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').

Ex Input:
Humans learn through the ____ senses.\Question: Choose the right answer from options given a) eight b) one c) five d) ten

Ex Output:
c


Ex 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

Ex Output:
c


Ex Input:
Igneous rock occurs in ____ ways .\Question: Choose the right answer from options given a) nine b) ten c) two d) six

Ex Output:

c