Why igneous rock is said to be mother rock​

Igneous rocks are considered the "Mother" of all rocks. Molten material cools down and becomes either a volcanic or plutonic igneous rocks. ... For instance, if magma cooled inside the Earth it is called plutonic. If molten rock (lava) moved upwards in a volcano and cooled it is called a volcanic rock.

D. latin america followed by africa

Answer meranesia;