Task: Class Definition Understanding (ontology: Earth_Environment/SWEET)

Which of the following definitions best describes 'lava'?

A. A mound of loose material that was ejected ballistically.
B. the concept is molten rock that is found beneath the surface of the Earth.the concept is a complex high-temperature fluid substance in 3 phases; a system of silicate liquid, solid minerals, and perhaps a vapor phase. [Wikipedia]
C. Magma that extrudes onto the surface of earth is called the concept. [Wikipedia]
D. An extrusive rock intermediate in composition between trachyte and andesite.

Answer: Magma that extrudes onto the surface of earth is called the concept. [Wikipedia]