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

Which of the following definitions best describes 'volcanic chain'?

A. A distinction of whether the continental is on a stable paltform, i.e., over millions of years. [Wikipedia]
B. Where this association of flood basalts with continental rifting is observed, it is not uncommon to find linear chains of volcanic islands [Wikipedia]
C. Island arcs that develop along the edges of a continent (for example, large parts of the Andes/ Central American/ Canadian mountain chain) may be known as a volcanic arc or the concept. [Wikipedia]
D. A the concept is an old and stable part of the continental crust that has survived the merging and splitting of continents and supercontinents for at least 500 million years. Some are over two billion years old. Cratons are generally found in the interiors of continents and are characteristically composed of ancient crystalline basement crust of lightweight felsic igneous rock such as granite. They have a thick crust and deep roots that extend into the mantle beneath to depths of 200 km. [Wikipedia]

Answer: Island arcs that develop along the edges of a continent (for example, large parts of the Andes/ Central American/ Canadian mountain chain) may be known as a volcanic arc or the concept. [Wikipedia]