Which of the following materials can be considered physical evidence?

Physical evidence refers to tangible objects that can provide insight or proof in an investigation. Clothing and tools related to criminal activity are considered physical evidence because they can be directly linked to a crime scene or a suspect. For example, a piece of clothing might have biological traces, such as blood or hair, while tools can leave marks or impressions that match those found at the scene of a crime. This type of evidence can be collected, preserved, and analyzed scientifically, helping to establish connections between people, places, and events in a case.

The other options involve non-tangible or abstract forms of evidence. Witness statements are subjective accounts and could be influenced by perception or memory, psychological evaluations provide insights into an individual's mental state but lack physicality, and social media interactions, while potentially useful in investigations, are digital records rather than physical items. Thus, the option that includes clothing and tools is the only one that classifies as physical evidence, reinforcing its relevance in forensic investigations.