The correct answer is<span> A composite volcano, rhyolitic magma, and plinian explosion
</span> What composite means is that there was a lot of lava around it that cooled and overtime the more lava there was the more it layered around and created the comoposite volcano. That is because there's a lot of lava at its eruption. The violent explosion is plinian because it goes high into the air with a lot of smoke and matter in it.
In any particular culture, an idea or way of doing things that is common to the culture is called a cultural norm.