Which best describes the use of shoring in construction?

The use of shoring in construction primarily involves providing temporary support to hold structures in place during construction or repair activities. This is crucial when existing structures are at risk of collapsing or when new installations are being added that require additional support until they are completed and self-supporting. Shoring ensures safety for workers on-site and maintains the integrity of the structure throughout the construction process.

The other options do not accurately depict the primary function of shoring. Permanent supports are typically referred to as piers or columns, decoration does not pertain to structural support, and installation of electrical systems is a different area of construction unrelated to shoring practices. By understanding these distinctions, it's clear that the fundamental purpose of shoring is indeed to provide temporary structural support.