Answer:
B ) digital audio
Step-by-step explanation:
The output is going to be a series of 0's and 1's. And it is nothing else but a binary data. or as here digital audio. The transducer audio and analog audio are not digital and hence they are not what is meant in the question.
One example can be like 00101010101011111 and something like, and this can be very big. However, the best thing to note above is certainly that you can have the answer as either 0's or 1's as output only. Thus with the help of the above, you can interpret the sound, and find its meaning using the Computer. This is because the computer can have only two outcomes at a time, and it can be 0 or 1. Analog or transducer will not work.