Answer: Option D.
Law.
Step-by-step explanation:
It is a law because a law refers to statements that tgat describe natural events which is formed based on several experiments that are carried out or observations of natural occurrence. It is based on observations from natural process and repeated experiments carried out and most times the reason for those observations are not known. Therefore,The descriptions pf natural events tha TV has been proven to be true time after time ,without explanation is a law.