How is Type AC armored cable characterized?

Type AC armored cable is characterized by its multiple insulated conductors. This type of cable typically contains several insulated wires that are encased within a protective metal sheath. The construction allows for efficient conduction of electricity while also providing a degree of mechanical protection due to the armor. The presence of multiple insulated conductors makes it suitable for a variety of applications where multiple circuit paths are needed, and it can handle varying loads effectively within a single cable assembly.

The other options don't apply because the non-metallic sheath refers to other types of cables that do not include the armored construction found in Type AC. A flexible design is more characteristic of other cable types intended for applications requiring bending and movement, while immersion in liquid pertains to specific types of cables designed for underwater or wet conditions, which is not a feature of Type AC armored cables.