Convert the Given Number to Scientific Notation $2.15019 \times 10 ^ { 7 }$

Multiple Choice

Convert the given number to scientific notation.
-0.000000215019

A) $2.15019 \times 10 ^ { 7 }$
B) $2.15019 \times 10 ^ { - 6 }$
C) $2.15019 \times 10 ^ { 6 }$
D) $2.15019 \times 10 ^ { - 7 }$