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').

[Q]: Sugar beet is strongly self-sterile setting few or ____ seeds under strict isolation.\Question: Choose the right answer from options given a) three b) no c) five d) nine
[A]: b


[Q]: Vaporization can occur in temperatures as low as ____ degrees.\Question: Choose the right answer from options given a) one b) zero c) eight d) two
[A]: b


[Q]: Heavy infection can kill up to ____ in four young calves.\Question: Choose the right answer from options given a) ten b) zero c) one d) nine
[A]:
c