What is the correct order of taxonomic ranks from broadest to most specific?

A. Kingdom, Phylum, Class, Order, Family, Genus, Species
B. Phylum, Class, Kingdom, Order, Family, Genus, Species
C. Kingdom, Order, Family, Phylum, Species
D. Class, Order, Family, Phylum, Species

Answer: Kingdom, Phylum, Class, Order, Family, Genus, Species