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:
Verbs have ____ functions in sentences.\Question: Choose the right answer from options given a) two b) eight c) no d) ten

Ex Output:
a


Ex Input:
Water is present in all ____ phases in Earth s atmosphere.\Question: Choose the right answer from options given a) six b) nine c) two d) three

Ex Output:
d


Ex Input:
Tics occur three to ____ times as often in boys as girls.\Question: Choose the right answer from options given a) four b) no c) two d) zero

Ex Output:

a