The correct statement here is:
d. If the old machine is sold for a loss when it is replaced, the loss is treated as a cash outflow in the computation of the new machine's initial investment outlay.
Explanation:
The correct statement here makes the right assumptions about the initial investment outlay of the machine.
These assumptions are made because of the fact that the price of the old machine would probably be less than the new one so it will be sold at a loss.
Now when the total investments that are to be made are calculated it is essential for the service to include this net difference which would then be covered.
If there is little hope for recovery then this should not be done and the replacement must be cancelled.