I believe it’s A
I hope that helped
this device is called the Oscilloscope.
Explanation:
Reason for being late?” they ask. "Because the kids wouldn’t get out of bed, they read books by the heater when they were meant to be getting dressed, took half an hour to eat their toast and then couldn’t find their shoes," is what I want to answer. “Just late,” I say, as brightly as possible.
