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]: Sound waves travel through the air in a similar manner, but in all ____ dimensions.\Question: Choose the right answer from options given a) three b) five c) nine d) one
[A]: a


[Q]: Carnations grow well in a garden spot that receive ____ to five hours of sunlight per day.\Question: Choose the right answer from options given a) eight b) three c) one d) four
[A]: d


[Q]: Natural iridium contains ____ isotopes.\Question: Choose the right answer from options given a) seven b) two c) ten d) five
[A]:
b