Answer: (d)Nigerian Police force
Step-by-step explanation:
Pressure group simply refers to an organization that influences the government to take action with regards to a particular issue. Pressure groups can include ethnic associations or trade unions.
The pressure groups serve as an important link between the government and the people that are being governed. From the options given, pressure group includes Nigerian Medical Association, Nigerian
Union of Teachers and the Nigerian union of Journalist.
It should be noted that the Nigerian Police Force isn't a pressure group.