What feature makes EMT easy to install and modify?

The feature that makes EMT (Electrical Metallic Tubing) easy to install and modify is its lightweight design and the ability to be easily bent by hand or with tools. EMT is specifically designed to be thin-walled and is made of aluminum or steel, so it offers ease of handling compared to heavier conduit types. The ability to bend EMT allows electricians to create custom shapes and configurations, facilitating a quick and straightforward installation process. This advantage is particularly useful in tight spaces or when routing around obstacles, enabling adaptability in various installation scenarios without requiring specialized tools or excessive manpower.

The other options do not highlight features that contribute to the ease of installation. For instance, a heavy weight and rigidity complicate installation efforts, while pre-bent options can reduce customization flexibility. Similarly, complex installation requirements would hinder ease and efficiency during the process.