Write the Number $0.00161$ In Scientific Notation $1.61 \times 10 ^ { - 4 }$

Multiple Choice

Write the number $0.00161$ in scientific notation.

A) $1.61 \times 10 ^ { - 4 }$
B) $1.61 \times 10 ^ { - 2 }$
C) $1.61 \times 10 ^ { - 3 }$
D) $1.61 \times 10 ^ { 3 }$
E) $1.61 \times 10 ^ { 2 }$