Which statement describes noise in the context of data transmission?

In the context of data transmission, noise refers to any unwanted disturbance that interferes with the clear transmission of signals. This disturbance can be caused by various factors, such as electrical interference, cross-talk from adjacent wires, or even environmental factors like weather conditions. When noise is present, it can distort the actual data being sent, leading to errors in transmission, data loss, or reduced quality of the received signal. Thus, the description of noise as an unwanted disturbance accurately captures its negative impact on data communication systems and highlights its role in creating challenges for effective transmission and reception of information.