<span>B.punctuation and grammatical errors<span /></span>
The correct answer is; "What proof the tripster is able to provide".
That´s because as a reporter, he must make sure about the authenticity of the accusation as he cannot post apocryphal news.
Answer:
Dee must have closed the door.
In experimental physics, reverberation produces echo and thus makes undesirable sound. An echo is a sound reflected off of a surface. In a big hall, it interferes with the actual sound. It gives confusion when people are having a conversation.
