[单选题]
A container of water is lifted vert3jqzq q i2((n+v iwg;sically 3.8)t 4g cay xa)qppe,fkl4m7f)0 m then returned to its original position. If the a 8fk,f y)x g7plea4mqt)pc) 4total weight is 30 N, how much work was done?
A. $45 \; J$
B. $90 \; J$
C. $180 \; J$
D. No work was done.
