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 Q]: 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 A]: c

[EX Q]: Some infected horses show ____ signs and become chronic carriers of the disease.\Question: Choose the right answer from options given a) nine b) six c) four d) no
[EX A]: d

[EX Q]: Reproductive maturity occurs at ____ to ten years.\Question: Choose the right answer from options given a) eight b) five c) seven d) zero
[EX A]:
c