The application of scientific methods and knowledge in the investigation of a crime is called what kind of science

Forensic science or criminalistics

Explanation:Forensic science is referred to as a branch of science that deals with the investigation. it consists of all the methods that need to be initiated to obtain all information or evidence that generated at the criminal site.

If it is needed then it also introduces the reconstruction of the full crime scene by using obtained evidence. The technique used in forensic science is Hair analysis, fingerprint analysis, luminol spray, etc.

the 4th option is the answer

answer; i believe the answer is (b) fascism;