Which of the following UN General Secretary was awarded the Nobel Prize posthumously in 1961 for his efforts to settle the Congo crisis?

Dag Hammarskjöld

The correct answer is Option (2) → Dag Hammarskjöld

Dag Hammarskjöld (1953-1961) Sweden; Economist and lawyer; worked for resolving the Suez Canal dispute and the decolonisation of Africa; awarded Nobel Peace Prize posthumously in 1961 for his efforts to settle the Congo crisis; Soviet Union and France criticised his role in Africa.