Answer: Option (c) is the correct answer.
Explanation:
According to law of conservation of energy, energy can neither be created nor it can be destroyed as it can only be converted from one form to another.
For example, in the given situation electrical energy is converted into heat energy.
This means that the total amount of the electrical energy is actually equal to the total amount of heat energy. As only change in the form of energy has taken place.
Thus, we can conclude that as electrical energy is converted into heat energy, the total amount in the system remains the same.
