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').
--------
Question: 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

Answer: c


Question: Nodes are points in space that have ____ probability for locating an electron there.\Question: Choose the right answer from options given a) no b) six c) zero d) three

Answer: c


Question: Muscle strength can remain at lower than pre-exercise bout levels for as long as ____ days.\Question: Choose the right answer from options given a) ten b) four c) three d) two

Answer:
c