Concept:Parastatals are government-owned enterprises set up for public welfare.
Explanation:Parastatals, also called public corporations, are established by the government.
They are created mainly to provide essential services to the public at affordable rates.
These services include education, health, transport, and utilities.
Their main aim is not to make profits but to satisfy the social needs of the people.
For example, in Nigeria, parastatals may be federal or state owned.
Thus, the key reason for establishing them is social service delivery.
Answer:D. render social services.