Which of the following is a feature of extrusive vulcanicity?

A feature of extrusive vulcanicity is a composite cone. Extrusive vulcanicity refers to volcanic activity that occurs on the Earth's surface, where magma, ash, and gas are ejected from the volcano. Composite cones, also known as stratovolcanoes, are formed from layers of lava, ash, and other volcanic materials that accumulate during eruptions. These cones are characterized by their steep sides and a symmetrical shape, making them some of the most recognizable volcanoes in the world. In contrast, lopoliths and batholiths are features of intrusive vulcanicity, which occurs when magma solidifies beneath the Earth's surface. Lopoliths are large, saucer-shaped intrusions that are concave upwards, while batholiths are massive bodies of intrusive igneous rock that extend over an area of at least 100 square kilometers. Sills are also a feature of intrusive vulcanicity and are horizontal sheets of magma that are forced between layers of existing rock. Overall, the key feature of extrusive vulcanicity is the formation of composite cones, which are created by the accumulation of volcanic materials during eruptions on the Earth's surface.