Igneous rocks are formed in magma or lava.
1. When an ingenious rocks are formed in lava( magma but outside) there are called extrusive rock, they have no layers, plan by one color which is black and is smooth.
2.When an igneous rock is formed in magma( underground ) it’s Intrusive rock, they have sediments not layers, different color, and is not smooth. But rarely have fossils.
So the answer is A.
I hope this helped have a nice day
