Which of the following is an example of class characteristics?

Class characteristics refer to features that are shared among a group of items and can help in identifying the general category or class of an object. In this context, the sole design of a Nike Air Max shoe represents class characteristics because it is a design that is produced and used across multiple pairs of shoes within the same line. This means many shoes can have the same sole design, making it a defining feature of that particular style or model, rather than something unique to a specific shoe.

Understanding this concept is important as class characteristics help forensic investigators associate evidence with a particular brand or model, which can be crucial in an investigation. In contrast, options like a unique wear pattern on a shoe, a fingerprint, and a specific tear in clothing refer to individual or specific characteristics that can point to a singular item rather than a group or category.