A. if there is an engineer on staff, he likely knows me
Answer: out of your mind, not in your senses
Answer: Answer below, pleaseee mark me brainliest!!!
Explanation:
It would be <u><em>concise</em></u><em> </em>and <u><em>clear</em></u>. You want you research question to be brief but clear so there is no room for error or confusion.
Hope this helps!
The answer is a.. A colon is best used in advance of a new topic or point, and not in the midst of a sentence, as is the case with the other options.
