GKFix MCQ Question

Which of the following correctly represents 1 mg in kg and ng?

• A. 1 mg = 10^-3 kg = 10^6 ng
• B. 1 mg = 10^-6 kg = 10^6 ng
• C. 1 mg = 10^-5 kg = 10^4 ng
• D. 1 mg = 10^-4 kg = 10^5 ng