Which one of the following determines the salvage value of an asset at the end of a project's life?

Question $12$ options:

The book value of the asset based on CCA depreciation.

The book value of the asset if straight$-$line depreciation were used.

The difference between the book value and the market value when the project ends.

The market value at the time the project ends.

The market value at the time the project commences minus the initial book value.