Which of the following describes the term "semirigid metallic tubing"?

The term "semirigid metallic tubing" refers to a type of piping that combines some degree of flexibility with the strength and durability of metal. It is designed for applications where a fully rigid pipe would be unsuitable due to spatial constraints or the need for slight adjustments during installation. The semirigid nature allows it to bend to a certain extent without compromising the integrity of the material, making it ideal for plumbing systems where some movement may occur or be required.

In contrast, flexible piping materials would lack the structural rigidity typical of metal, while rigid piping materials would not offer the necessary flexibility for specific applications. Plastic pipe fittings and non-metallic piping materials do not fall under the category of metallic tubing at all, further distinguishing semirigid metallic tubing as a unique option suitable for various plumbing scenarios.