I believe it is C. Conflict.
The correct answer should be A)Each milestone of achievement opens up a new world to be experienced.
All experience that we get opens up new experiences that are there to be discovered.
Answer:
Its really nice in my opinion and original.
Explanation:
In the given sentence "We are waiting your feedback soon", the words that make the sentence incorrect is the word "soon", and it lacks the word "for" after the word "waiting". The correct sentence should be: We are waiting for your feedback. The use of the word "soon" contradicts the verb tense used in the sentence.
Can you post the sentences ?