The aim of scientific investigations is to understand and explain the natural phenomenon. This aim can be achieved by using the scientific methods which provide the pieces of evidence to explain and understand the natural events.
The scientific investigation is not based on the belief system, personal opinions and the co-incidences which cannot explain the natural phenomenon. They are considered as a part of the pseudoscience practice as they lack evidence.
Since chemistry is the field of study which can explain any natural phenomenon by performing an experiment which provides evidence, therefore, Option-C is the correct answer.
