What does a break in a conductor typically affect in a telephone system?

A break in a conductor in a telephone system primarily affects connection integrity and signal. This occurs because the conductor acts as a pathway for electrical signals. When there is a break, the continuous flow of these signals is disrupted, leading to a loss in the quality of communication or even complete disconnection. The integrity of the connection is vital for maintaining clear and consistent telecommunications. Without this functioning conductor, signals cannot be transmitted effectively, resulting in poor performance or total communication failure.

While data transmission speed, power supply, and operating frequency may play roles in the overall operation of a telephone system, the immediate and direct impact of a break in the conductor is primarily on the connection and signal integrity. Thus, the correct choice reflects the specific consequences of such a break in the system.