an igneous rock is light in color and has extremely coarse grains. what is the most likely origin of the…

Brief Explanations:

Igneous rocks with extremely coarse - grained texture form from slow cooling of magma. Magma chambers provide an environment where magma can cool slowly over long periods, allowing large crystals to form. In contrast, areas like the bottom of the ocean, outer slopes of a volcano, or the shore of a volcanic island are associated with more rapid cooling due to contact with water or air, resulting in finer - grained or glassy igneous rocks.

Answer:

a magma chamber