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:
Foresters usually work ____ hours a day, five days a week.\Question: Choose the right answer from options given a) six b) five c) seven d) eight

Ex Output:
d


Ex Input:
Plants can uptake ____ times more nutrients, and improve soil texture at the same time.\Question: Choose the right answer from options given a) no b) two c) three d) ten

Ex Output:
d


Ex Input:
Miniature cattle are classified in ____ categories as measured by height at the hip.\Question: Choose the right answer from options given a) no b) five c) three d) ten

Ex Output:

c