Computer Science for IGCSE & O level - Data Representation (Section 13 - No. 39)

Which of the following statements regarding lossless compression is correct?

Lossless compression is used for audio files only.

Lossless compression reduces file size, but some of the original data is lost.

Lossless compression can restore the original data completely.

Lossless compression always creates a smaller file than lossy compression.

Lossless compression permits perfect reconstruction of the original file.