There are how many countries i western europe

Which of the following best describes the term cleavage? a. cleavage describes the quality and amount of light reflected from a mineral surface. b. cleavage is the characteristic growth pattern or shape of a mineral. c. cleavage is the splitting of minerals along natural planes of weakness. d. cleavage is the colored mark that a mineral makes when scratched on a porcelain tile. e. cleavage describes a mineral's resistance to abrasion.