I believe the answer would be A and if it isn't I'm sorry but I hope this helped
Answer: sound pattern
Explanation:
The word means blending the sounds and combining the meanings of two other words. Like if you blend breakfast and lunch, you get brunch.
Answer:
The 1st and 3rd answers are very good but I believe it's actually the 3rd, "Any noise might reveal that they are in the building.
Explanation:
They are trying to be quiet so that soldiers and other people don't hear them. I think they would try to be quiet so no soldiers here them but same thing for people.
One drawback of voluntary trade is that it can make one group dependent upon another for necessary goods.