The correct answer is B. Igneous and metamorphic.
Metallic ores are produced by igneous and metamorphic processes.
Deposits of ore are formed by lateral secretion which is formed during shearing by metamorphic reaction and they liberate some constituents of minerals.
For example, carbonate, oxides, sulfides, gold, and quartz.
The most common metal ore is aluminium which is found in silicate ores which are known as type of clay.
