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: Some people have ____ symptoms until the liver has been quite severely damaged.\Question: Choose the right answer from options given a) eight b) no c) nine d) ten

Answer: b


Question: Alleles segregate independently yielding ____ possible allelic combinations in gametes.\Question: Choose the right answer from options given a) ten b) one c) four d) nine

Answer: c


Question: Sigma is the mean ____ point uncertainty, in magnitudes, X is the airmass.\Question: Choose the right answer from options given a) zero b) nine c) six d) no

Answer:
a