Answer:
Option B
Explanation:
According to quantum theory of radiation electromagnetic field or electromagnetic radiation( like light) produce by accelerated charge object and the quantum of EM radiations is photon which has discrete energy. So, EM field can have only certain values of total energy and no other value due the discrete nature of the energy of photon. Hence option B is correct
B because it is the only evidence that displays an effect from the field without contact
I think it would be C: Sometimes true and sometimes false. It varies.
Hope this helped, have a great day! :D
Burning a log because you are turning the log into ash from wood.