Final answer:
option b,Joint treatment systems consist of reinforcing tape and joint compound, essential for creating a smooth, finished surface on drywall installations.
Step-by-step explanation:
The systems that consist of reinforcing tape and joint compound are known as Joint treatment systems. These systems are an integral part of drywall installation and finishing. When a wall is constructed using drywall or gypsum board, the seams between the boards are not automatically smooth and seamless. To create a smooth, finished surface, the seams must be treated with the aforementioned system, which includes the application of joint compound along with reinforcing tape.
Joint compound, sometimes referred to as mud, is a material used to fill gaps and make surfaces even. Reinforcing tape, which can be made of paper or fiberglass, is applied over the compound along the seams to prevent cracking and to reinforce the joint. After the tape is applied, additional layers of joint compound are used to cover the tape and create a smooth surface that can be sanded and painted.