Light home occupations shall be permitted in R-A and R-S Districts in the home of a resident. Light home occupations shall include the following: dressmaker, seamstress, tailor, home laundry and ironing, office for insurance agent, doctor and dentist office, office for selling or taking orders for merchandise or services, day nursery for not more than four children, rooming or boarding facility for not more than two persons by a resident owner. Occupations similar in character and intensity of use to the above, and a rooming or boarding facility for more than two persons may also be permitted, but only as determined appropriate and reasonable by the Zoning Board of Appeals after a public notice and hearing.