D is the answer since the paragraphs give a before and after type beat
Answer:
E=MC2
Explanation:
The formula basically states that energy (E) equals mass (M) times the speed of light (C) squared (2). In essence, it means mass is just one form of energy.
How ever hard she may try,she cannot seem to pass the examination.
Among, this is because you put both options into the black and see which one sounds better. Hope I helped you!