Final answer:
Martin Luther King Jr. believed churches should engage in social and political activism and was disappointed with those that did not.
Step-by-step explanation:
The statement that is NOT an accurate representation of Martin Luther King Jr.'s opinion about churches is (d) He believed that churches should primarily focus on spiritual matters and avoid getting involved in politics. King's writings and actions show that he advocated for churches to take a strong stance on social justice issues, including politics. He was disappointed by churches that did not actively engage in the fight against racial segregation and those that preached love and unity but practiced discrimination. King's activism was grounded in the belief that social and political activism were essential aspects of Christian practice.