[单选题]
A 50-N object was lifted 2.k;hhmq2 brs;70 m verruqkp8(i,) hrw3m8nw)m t 5 yetically and is being held there. How much work is being done in holdn5) m3e ( t, u)qwpky8irwmrh8ing the box in this position?
A. more than 100 J
B. 100 J
C. less than 100 J, but more than 0 J
D. 0 J
