Answer: b) The compressed data can be restored back to its original state.
Step-by-step explanation:
What does lossless data compression mean?
Lossless data compression means that eventhough the data is compressed but that only compresses the size of a file however it retains the quality ; the quality is not lost during compression.
It is viable for both images and audio files
So what it does is to efficiently convert the file into a right size.
However the files will only be half size of the original file which means it still retains a larger size as compared to the lossy compression which will almost be tenth size of the original file .
The files can also be reconstructed back to the original file.