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]: Fluorescent lamps are roughly ____ times more intense than ordinary lightbulbs.\Question: Choose the right answer from options given a) six b) one c) three d) eight
[A]: c


[Q]: Conglomerate integration is when ____ apparently unconnected companies merge.\Question: Choose the right answer from options given a) two b) six c) no d) three
[A]: a


[Q]: Most spiders have ____ eyes, and the jumping spiders have the best eyesight of all.\Question: Choose the right answer from options given a) eight b) ten c) two d) no
[A]:
a