Answer:
The trip is delayed because all the fees have not yet been collected.
Explanation:
It explains why the trip delayed without adding too many words in the sentence, making the sentence short and easy to understand.
Answer:
The trip's delay is because of all the fees not yet being collected.
Explanation:
The meaning of concise is "giving a lot of information clearly and in a few words; brief but comprehensive." So this is the best choice because this sentence is not using all unnecessary words such as 'is' and was' so the sentence is much more brief and comprehensive then all of the others so, this is the best choice.