Answer: Option D
Explanation: As per the tax laws, the activities in which the taxpayer has expertise in and he or she is getting some kind of monetary benefit from performing it, then such activity will be seen as a business.
However, if the taxpayer do not repetitively perform an activity and derives no personal gain other than pleasure from performing such activity, then it will be a hobby.
Hence from the above we can conclude that the correct option is D.