i think your almost there but i would also try the next sentence after that one too hun
I think b sir :( im only in high school im sorry if its wrong
I believe the answer is "C." Brutus repeats the phrase "Who is here...." in every question he asks in this passage which gives emphasis on a specific point the speaker is making.
I am assuming you meant tool, a tool you can use to pick up tiny objects is a pair of tweezers.