Answer:
C) mitochondria and electricity
Explanation:
Mitochondria is an organelle of a cell which is responsible for generating energy in the form of ATP molecules with the help of electron transport chain (ETC). In electron transport chain, electrons keep passing on from one complex to another and release energy. This energy is then used to generate ATPs. These ATPs are further used by our body to perform it's day to day metabolic activities.
Electricity is somehow similar to mitochondria in this regard. Electricity is produced by the movement of free electron of a metal. This electricity is then used to produce mechanical energy which can be utilized to do various activities. For example: The electrical energy in a circuit is converted into mechanical energy which is further used to move a fan.
