Which of the following items might be included as documentary evidence?

Documentary evidence includes items that provide tangible proof of a fact or event, typically in written or recorded format. Text messages and photos are concrete forms of communication that can be saved, archived, and presented as evidence. They are not merely personal recollections or opinions but are actual records of conversations or events that can substantiate claims or provide clarity in investigations.

In contrast, oral statements made to coworkers rely on the memory and reliability of the individuals involved, which does not meet the criteria for documentary evidence. Speculative complaints consist of assumptions or conjectures that lack a factual basis, thus offering no reliable evidence. Informal conversations, while potentially relevant, also do not produce a permanent record and are often subjective, making them less suitable as documentary evidence.