The expression 24 karat refers to Choose one: A. 24 cleavage planes present within a gemstone. B. the purity of a sample of gold. C. a gemstone that is flawed by impurities. D. the biggest diamond ever found.

correct option is B. the purity of a sample of gold

Explanation:

given data

expression = 24 karat

solution

As Karat is used with gold

and it is an measure of the unit of purity of gold

with 24 karat gold is an pure gold

pure gold is very soft so we mix silver or copper and that its each karat indicate that th of whole unit

so we can say correct option is B. the purity of a sample of gold

answer; i believe that the correct answer to the above question is; (tariff)

the first one is d and the second a