Concept:Nigeria is endowed with various solid minerals, including tin, columbite, and marble.
Explanation:Tin and columbite are historically significant solid minerals mined in Nigeria, especially on the Jos Plateau.
Marble is also found in commercial quantities in states like Kogi and Oyo.
Diamond and bauxite are not among Nigeria’s major solid mineral deposits in this context.
Therefore, the correct combination is marble, tin, and columbite.
Answer:A. marble, tin and columbite