An electronic circuit<span> is composed of diffrent individual electronic components, such as resistors, transistors, capacitors, inductors and diodes, connected by conductive wires or traces through which electric current can flow. Uhh Hoped this helped :) Lmk if you don't understand. I will try and help you and make it more understandable </span>
It's B if that helps at all :) (I'm like, 98% sure that it's totally B!
Here is a very important formula. You should memorize it:
Distance = (speed) x (time) .
Here's how it's used to answer your question:
Distance = (2 m/s) x (600 seconds)
= 1200 meters .