The correct answer is D. Greater than diamonds, silver, or gold.
Explanation
Martin Luther King was an African American leader and activist in the African American civil rights movement in the United States. After standing out for his multiple interventions in front of hundreds of people and his leadership to eradicate racial segregation in the United States, he was rewarded by being chosen as the winner of the Nobel Peace Prize in 1964. During his speech at the ceremony of acceptance of this distinction, Martin Luther King referred to brotherhood and peace like this "brotherhood and peace is more precious than diamonds or silver or gold". Therefore, the correct answer is D. Greater than diamonds, silver, or gold.
