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]: Reality is more than what can be perceived with the ____ senses.\Question: Choose the right answer from options given a) five b) four c) ten d) one
[A]: a


[Q]: Some taxonomists classify only ____ species though.\Question: Choose the right answer from options given a) one b) six c) two d) three
[A]: c


[Q]: Ion chromatography is practiced in ____ forms.\Question: Choose the right answer from options given a) two b) nine c) seven d) no
[A]:
a