Perform the Indicated Operations A) $10 ^ { - 16 }$

Multiple Choice

Perform the indicated operations. $\frac { \left( 2 \times 10 ^ { - 4 } \right) \left( 6 \times 10 ^ { - 9 } \right) } { \left( 3 \times 10 ^ { - 3 } \right) \left( 4 \times 10 ^ { 5 } \right) }$

A) $10 ^ { - 16 }$
B) $- 3.4 \times 10 ^ { 21 }$
C) $10 ^ { 15 }$
D) $5.2 \times 10 ^ { 21 }$
E) $10 ^ { - 15 }$