Final answer:
Tribal music refers to the music of indigenous cultures. Based on the given options, the traditional percussion instruments Djembe, Darbouka, and Doumbek are the appropriate answer for what constitutes 'tribal music' in the context of the question.
Step-by-step explanation:
The term "tribal music" generally refers to the traditional music created by indigenous communities. Given the options provided in the question, the answer would be 'd. Djembe, Darbouka, and Doumbek drums,' as these are traditional percussion instruments associated with various indigenous cultures and regions.
Djembes are commonly found in West Africa, darboukas in the Middle East and the Mediterranean, and doumbeks are Middle Eastern drums. While musical styles such as those associated with Bob Marley and gangster rap can be deeply influential to certain cultures or social groups, they do not fit the classical description of 'tribal music'.