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').

[EX Q]: Routers are basically systems, which connect ____ networks together.\Question: Choose the right answer from options given a) three b) two c) nine d) six
[EX A]: b

[EX Q]: Ants have ____ distinct body parts.\Question: Choose the right answer from options given a) nine b) zero c) no d) three
[EX A]: d

[EX Q]: Gases are perhaps the best understood of the ____ states of matter.\Question: Choose the right answer from options given a) three b) five c) nine d) zero
[EX A]:
a