CD is the interverval of the greatest velocity. because A is interval with the velocity of zero. and B is the average velocity in m/s. Hope that helps :)
Mr. Kraler was talking to Mr. frank about him being sick when he asked Mr. Frank to go speak with him downstairs. Margot refused to let them go because she knew it was bad news and they should all hear. Mr. Kraler was hesitant because of the kids but he said there was a man who possibly knew about Mr. Frank hiding up and was blackmailing Mr. Kraler. This causes more complications with them hiding abd it connects to Act 1 with the theif they heard downstairs.
C, The dim light coming through the windows lit up the larger objects, but my eye could not see anything in the corners of the room.