[单选题]
A 10-kg piece of aluminum sg6c7vodh s j55ia+ae(-sht1 db / vax*jts at the bottom of a lake, right next to a 10-kg piece of lead. Which has the greater bueb(ad hat1+* v s-jx/aoyant force on it?
A. the aluminum
B. the lead
C. Both have the same buoyant force.
D. cannot be determined without knowing their volumes
