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

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

A. the instance as a compound which donates a hydrogen ion (H+) to another compound (called a base). [Wikipedia]
B. the instance is most commonly thought of as an aqueous substance that can accept hydrogen ions. [Wikipedia]
C. the instance climate classification is charactericized by year-round precipitation and having 1 - 3 months with temperatures above 10 degree C.
D. the instance climate classification, also known as the tropical rain forest climate classification, is characterized by monthly precipitation in excess of 6 cm all months out of year.

Answer: the instance as a compound which donates a hydrogen ion (H+) to another compound (called a base). [Wikipedia]