Answer:
usually your opinion and then facts to back it up
He started to observe, reconnoiter means to make a military observation of something so he throughly examined the corridors.
The google definition of the verb exact is "to demand and obtain from someone"
This leads me to believe that the answer would be C. take by force.
Answer:
You could say something like, "In her office, Mrs. Gupta is there."
Hope this helps!