Concept:Public pressure groups are organized groups that work for causes affecting the general public rather than the private interests of their members.
Explanation:They use campaigns, advocacy, and publicity to influence government policies and public opinion.
Greenpeace is an independent group that campaigns on environmental issues.
Its main goals are protecting nature, ending pollution, and promoting ecological balance.
These environmental matters affect every member of society, not just a particular profession or class.
Therefore, Greenpeace is rightly classified as a public pressure group.
Unlike sectional pressure groups, such as farmers' unions, it is not created to protect only one group's economic welfare.
Answer:D. Green peace