Task: Instance Description Understanding (ontology: Earth_Environment/SWEET)

Which of the following definitions best describes the instance 'nacl'?

A. the instance climate classification is characterized by winter drought and haviong 1 - 4 months with temperatures above 10 degrees C.
B. In mechanics, a state in which the vector sum of all forces, that is, the acceleration vector, is zero. In hydrodynamics, it is usually further required that a steady state exist throughout the atmospheric or fluid model. the instance may be stable or unstable with respect to displacements therefrom. See also hydrostatic the instance, geostrophic the instance, instability. 2. In thermodynamics, any state of a system that would not undergo change if the system were to be isolated.
C. A salt is defined as the product formed from the neutralization reaction of acids and bases. Salts are ionic compounds composed of cations (positively charged ions) and anions (negative ions) so that the product is electrically neutral (without a net charge). [Wikipedia]
D. In Raman spectroscopy, the instance is the intensity ratio between the perpendicular component and the parallel component of the Raman scattered light.

Answer: A salt is defined as the product formed from the neutralization reaction of acids and bases. Salts are ionic compounds composed of cations (positively charged ions) and anions (negative ions) so that the product is electrically neutral (without a net charge). [Wikipedia]