Answer: The answer is b: transportation
Transportation is a requirement of all service sector occupations.
Explanation: Service sector occupations refer to the one of the three economic sector that deals with the production of services. Service sector provides services in the economy and not an actual product that one can held with the hand. Examples of activities in the service sector include: banks, hotels, social work, retail, communications and so on.
Transportation is the movement of people and goods from one place to the other. Transportation can be by land, air, water, rail and so on. Transportation is very important in the delivery of all service sector occupation.