Categorise the following into business, profession and employment

Categorise the following into business, profession and employment
(a) A doctor (b) A clerk © A lawyer (d) A merchant
(e) A rigger working in a shop and repair scooters.

(a) It is a profession. (h) It is an employment. © It is a profession.
(d) It is a business. (e) It is an employment.