Home occupations shall be permitted provided that:
a.
Such occupation is incidental to the residential use of the premises and is carried on in the main residential building by a resident on the premises without nonresident assistants.
b.
Such occupation is carried on in an area not more than 25% of the dwelling.
c.
Any display of goods or signs identifying such occupation shall be prohibited, except as provided in subsection 28-7.2.
d.
Such occupation generally does not generate truck delivery or pickup activities as part of the operation.