Answer:
This is the book that I have found in the box; <em>whose </em>is it
Explanation:
by saying this <em>is</em> the book I have found in the box, we know that we will not be asking "where" is it (because it <em>is </em>here)
we are not asking "whom" is it, because that would mean we are asking about who the book is ('who' being a person; the book is not a person)
we are not asking "when" is it, because that is not grammatically correct or logical
so, we are asking "<em>whose </em>is it"
hope this helps!!
Answer:
it would go with all but for better results option.b
Answer: I would go with B.
Explanation: The group of words for option B seem like they would be used more for contrasting than option D. It can't be option A or option C because those options use comparing signal words.