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:
Healthcare providers diagnose ____ general types of insomnia.\Question: Choose the right answer from options given a) two b) eight c) one d) three

Ex Output:
a


Ex Input:
Mosquitoes have ____ distinctive life stages, with the first three stages being spent in the water.\Question: Choose the right answer from options given a) four b) zero c) nine d) five

Ex Output:
a


Ex Input:
Child molesters are ____ times more likely than other violent criminals to recommit their crime.\Question: Choose the right answer from options given a) nine b) seven c) three d) four

Ex Output:

d