[单选题]
A 500-kg elevator is pulled upward with a constvmzj ie9 m ma/d /1hx,mmjg)73no:l g7ant force of 5500 Nl(l 4 -dbjw,sc for a distance of 50.0 s,cjwl d4 (bl-m. What is the net work done on the elevator?
A. $2.75 \times 10^{5} \; J$
B. $-2.45 \times 10^{5} \; J$
C. $3.00 \times 10^{4} \; J$
D. $-5.20 \times 10^{5} \; J$
