Answer:
I THINK it’s A
Explanation:
Because all the other answers don’t make sense.
Getting a good night sleep can benefit you in a lot of ways. Also that’s not a question.
The electric currents induces a magnetic field. They changing magnetic field can be induce an electric current.
Properties that define the light is a wave are
1. Speed : speed of light is 300,000 Km /s, It is most fundamenta property of light to define light is a wave
2. Reflection: Light particles or photons reflect off the particles or masses are continue to travel at the same speed.
3. colour