Convert 0440 Ng to Milligrams and Express the Answer in Scientific

Multiple Choice

Convert 0.440 ng to milligrams and express the answer in scientific notation using the correct number of significant figures.

A) 4.40 $\times$ 10^-5 mg
B) 4.40 $\times$ 10^-7 mg
C) 4.4 $\times$ 10^-7 mg
D) 0.440 $\times$ 10^-8 mg
E) 0.440 $\times$ 10^-7 mg