Robert Dahl argued that in a society, the varied interest groups that emerge to represent their members will, in their battles over public policy, produce a consensus that serves the public’s common interest.

Pluralist.

Explanation:

Robert Alan Dahl, the popular political theorist, argued that 'in a pluralist society the distinct groups that evolve to represent the members of their will, provide a unanimity that considers the 'common interest of the people' while battling over the public policy.' In his famous work 'who governs?', he asserts the individuals in the political groups attempt to consider the recognize the various beliefs and identities. He states that the societal goal of 'such cultures is to make collective, valuable, and consistent decisions that consider the common interests of all the people of the group' irrespective of their inherent differences.