Answer:
A. An analog audio signal is measured at regular intervals. Each measurement is stored as a sample, which is represented at the lowest level as a sequence of bits.
Step-by-step explanation:
An audio signal can be defined as a representation of sound, either as an analog or digital signals. An analog audio signal refers to a continuous signal that is represented by a changing level of quantity such as voltage with respect to time.
Hence, the statement which best explains how an analog audio signal is typically represented by a computer is that, an analog audio signal is measured at regular intervals i.e it's a time varying quantity. When its measured using a particular measuring device such as audio analyzer, each measurement is stored as a sample, which is then represented at the lowest level as a sequence of bits such as 16kbps, 32kbps, 64kbps, 96kbps, 128kbps, 196kbps, and 320kbps. Kbps means kilobits per seconds.