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:
Parliaments can last five years, often last ____ and a bit.\Question: Choose the right answer from options given a) four b) three c) five d) two

Ex Output:
a


Ex Input:
Granite occurs in ____ separate masses.\Question: Choose the right answer from options given a) two b) eight c) nine d) no

Ex Output:
a


Ex Input:
Spiders have two segments and flies have ____ segments.\Question: Choose the right answer from options given a) zero b) no c) one d) three

Ex Output:

d