An Egg Yolk with the Volume of 3

An egg yolk with the volume of 3.75 mL contains 5.00 µg vitamin D (cholecalcifoerol) . What is the concentration of vitamin D in mg/dL? (1 µg = 10^-6 g and 1 dL = 10^-1 L)

A) 0.0188mg/dL
B) 0.133 mg/dL
C) 0.750 mg/dL
D) 1.30 mg/dL