[单选题]
A solid object floats in water pl5avly+28qhc1 o mu+with is9e-xdys+5, us +sp 8)bxtk qthree-fourths of its volume beneath the surface. What is the ob)+x s 8tyxs+5ss9u,db q-ikpe ject's density?
A. $1333 \; kg/m^{3}$
B. $1000 \; kg/m^{3}$
C. $750 \; kg/m^{3}$
D. $250 \; kg/m^{3}$
