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

Which of the following definitions best describes 'reaction path model'?

A. the concept is a set of interacting or interdependent entities, real or abstract, forming an integrated whole.
B. A simulation approach to studying the chemical evolution of a (natural) system.
C. An imaginary volume of fluid to which may be assigned various thermodynamic and kinematic quantities.
D. The hanging wall appears to have moved down relative to the footwall; dip of fault usually 45-90 degrees.

Answer: A simulation approach to studying the chemical evolution of a (natural) system.