[单选题]
A solid object floats in water with three-fourtha i42l(27 bxun,:.mi4j epx olt,exdqs of its volume belpi oy gsm+4,hoz .y20cn/-mm3z i-mzneath the surface. What is the obj ims mn2g.lihzyz0,po z +3 m4-/-ocymect's density?
A. $1333 \; kg/m^{3}$
B. $1000 \; kg/m^{3}$
C. $750 \; kg/m^{3}$
D. $250 \; kg/m^{3}$