Physical quantities and measurement techniques — practice question

A learner is making some measurements. Which measurement is obtained directly with a micrometer screw gauge?

• A$0.52\,\text{g mm}^{-2}$
• B$0.52\,\text{g mm}^{-3}$
• C$0.52\,\text{mm}$
• D$0.52\,\text{mm}^2$