Which device is responsible for anchoring the toilet to the flooring?

The flange is the critical component that anchors the toilet to the flooring. It serves as a mounting bracket that secures the base of the toilet and connects it to the waste drain. Typically made of PVC or metal, the flange is installed on the finished floor and provides a stable base for the toilet, ensuring that it remains firmly in place during use. This stability is essential for preventing leaks and maintaining the overall functionality of the toilet.

In contrast, other components listed, such as a connector, interest primarily pertains to the water supply line or the connection from the toilet to the drain pipe. The toilet seat is a removable component that provides comfort during use but does not contribute to the structural stability of the toilet itself. The trap is part of the plumbing system that prevents sewer gases from entering the home, but it does not play a role in anchoring the toilet. Therefore, the flange's specific role in securing the toilet to the floor makes it the correct answer to this question.