O cliche would be your answer, have a great day!
You'll want to leave it out. if it isn't conducive to the content of your paper, it's more like a distraction from what you're trying to say. parentheses might be a "safe" way to signify a side topic, but it weakens the paper as a general statement because the reader has to pause and take a moment to absorb a new topic before going back to what you were saying
The sentence - Both Lee and I received the e-mail message that you sent us - is written in the active voice. The correct answer is A.
The passive voice would be - The e-mail message that you sent us was received by both Lee and I.
I believe the answer is conflict. I hope this helps!:)
New York because it is busy and and it snows there