In act 2, scene 3, who is Karl Lindner, and what proposition does he offer the Younger family? Use complete sentences in your response.

In act 2, scene 3 of "A Raisin in the Sun," Karl Lindner is a representative from the Clybourne Park Improvement Association. He approaches the Younger family with a proposition to dissuade them from moving into the predominantly white neighborhood of Clybourne Park. Lindner offers them a monetary incentive to reconsider their plans for moving, suggesting that it may not be in the best interest of both their own family and the community.