Explain why the loss resulting from the sale of a computer in the following three situations is…

Explain why the loss resulting from the sale of a computer
in the following three situations is treated differently for income tax
purposes:

a. Monica sells her personal computer at a loss of $1,300.
None of the loss is deductible.

b. Omar sells a computer used in his carpeting business at a
loss of $4,300. The loss is fully deductible.

c. Jerry sells his computer at a loss of $3,800. Jerry used
the computer to keep track of his investment portfolio. Only $3,000 of the loss
is deductible.