In general, taxonomy means the standard categorization and classification of the life on our planet Earth. Although, nowadays, it is also used to classify concepts and theories. Moreover, this word can be cut into two separate words belonging to the Greek language. Mentioned below is the break-down of the word "Taxonomy":
'taxis' which means 'arrangement' or 'order', plus, 'nomos' which is the word for 'law' or 'science' in the Attic Greek dialect.
Therefore, I conclude that from the given choices, "Option B" is correct.