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:
Basting is the stitching used to hold the ____ layers of fabric together while quilting.\Question: Choose the right answer from options given a) four b) six c) three d) ten

Ex Output:
c


Ex Input:
Aspiration pneumonia includes ____ syndromes based on the nature of the inoculum.\Question: Choose the right answer from options given a) three b) seven c) eight d) no

Ex Output:
a


Ex Input:
Ankle joint has ____ degrees of freedom.\Question: Choose the right answer from options given a) seven b) eight c) four d) three

Ex Output:

d