Final answer:
The typical root configuration of a single-rooted tooth is a single root.
Step-by-step explanation:
The typical root configuration of a single-rooted tooth is a) Single root.
This means that the tooth has only one main root. It does not have any additional roots branching off from the main root.
For example, a human incisor tooth typically has a single root, while molar teeth usually have multiple roots, such as two or three. The configuration of roots can vary depending on the type of tooth and the species.