The correct options are as follows:
7. D
Interest group refers to a group of people that seek to influence public policy on the basis of a specific common interest. The group usually work together to protect and promote that particular interest by influencing the government. Interest groups are divided into two broad groups, which are economic and non economic interest group.
8. D
Affirmative action policy refers to admission of policies that provide equal access to education for those groups which have been historically marginalized or excluded. Affirmative action policy usually focus on employment and education.