Which type of cable is generally used for branch circuits?

The correct choice for the type of cable generally used for branch circuits is Type NM cable. This cable, also referred to as non-metallic sheathed cable, is widely used for residential installations. Its design allows it to be used in interior applications where it can be run through walls, ceilings, and floors in homes.

Type NM cable contains two or more conductors insulated with a thermoplastic material, along with a bare grounding wire. It is able to safely carry electricity in branch circuits to outlets, switches, and fixtures. Because it's relatively lightweight, flexible, and easy to install, it has become a common choice among electricians for residential branch circuits.

While Type AC cable provides similar applications, being armored and suitable for various environments, it is less commonly used in residential branch circuit applications compared to Type NM. Type MC cable, which is also armored, is more suited for industrial or commercial applications where additional protection is necessary. Lastly, Type UF cable is designed for underground use, which limits its application to specific scenarios where it is unsuitable for standard indoor branch circuits.