The answers are as follows:
1. D.
Truck dispatchers are workers who worked behind the scene to ensure that truck drivers have loads to carry and they ensure that drivers comply with their specified appointed arrival time and destinations. Truck dispatchers are indispensable to the truck industry because of their crucial roles in ensuring that truck drivers concentrate on their routes and safely deliver their cargoes.
2. A.
The field of engineering is a branch of science and technology which involves the design, manufacture and use of various types of machinery, technology and building. Engineering is a wide field and there are different types of engineering. Engineers use science and technology to solve problems.
3. D.
An agribusiness is a type of business that involves the production, processing and distribution of agricultural products. It is a business which manages the food supply system. The term 'agribusiness' encompasses all those that are involved in the marketing of the farm produce including the warehouses, wholesalers, processors, etc.
