Which of the following best describes physical evidence?

Physical evidence is best described as evidence that can be seen and touched. This definition encompasses tangible items that can be collected and analyzed during forensic investigations, such as fingerprints, blood samples, weapons, clothing, and other objects that are directly associated with a crime or incident. The ability to physically interact with this type of evidence makes it critical for forensic analysis, as it can often be preserved, collected, and examined to draw conclusions related to the investigation.

Other options presented do not align with the definition of physical evidence. For instance, evidence gathered from electronic devices refers specifically to digital evidence, which is intangible and does not involve physical items one can handle. Testimonies given by witnesses fall under testimonial evidence rather than physical evidence, as it is based on what individuals recall and communicate about an event. Information regarding a suspect's background could be categorized as circumstantial evidence or information relevant to an investigation, but it lacks the tangible quality that defines physical evidence.