Density of the Solid

If 7.000g of a solid displaced 21.0 mL of water when dropped into a graduated cylinder, what is the density of the solid?

A. 0.3 g/mL

B. 0.33 g/mL

C. 0.333 g/mL

D. 0.3333 g/mL

E. 0.3333 g/L

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