Convert the Number in the Sentence to Standard Notation $57,009,000 \mathrm{~km}$

Multiple Choice

Convert the number in the sentence to standard notation.
-The average distance from Mercury to the Sun is 57.9 million kilometers.

A) $57,009,000 \mathrm{~km}$
B) $57,000,900 \mathrm{~km}$
C) $57,090,000 \mathrm{~km}$
D) $57,900,000 \mathrm{~km}$