Three groups of employees of 'Gama Limited' are working at different posts. The first group of employees is responsible for the welfare and survival of the organisation. In order to discharge its responsibility properly, this group continuously keeps a watch over the Business Environment. With a view to coping with the changes going on in the Business Environment, this group immediately discusses the change to be brought about in the company's plans.

The second group of employees is responsible for maintaining quality and safety standards, and minimising wastages.

The responsibility of third group of employees is to explain the policies decided by the top management and developing the feeling of cooperation among all the departments of the company.

(a) Identify the concept of management described in the paragraphs given above.
(b) Identify the three types of the concept identified in 'a' by quoting the relevant lines.