[单选题]
A lever is 5.0 m lon*7yni, wmpm+q2sz(j k6dn -xug. The distance from the fulcrum to the weight to be lih0b-scnqj+lvj4q9 j. g4 ybk2fted is 1.0 m. If a worker pushes on thj+ j2.4-cnqsby4qbkh jgl v09 e opposite end with 400 N, what is the maximum weight that can be lifted?
A. $80 \; N$
B. $100 \; N$
C. $1600 \; N$
D. $2000 \; N$
