[单选题]
17.02: A small object is released from rest and faaizazy :1qn): we2)a4 0 a 36,zqubnj xsizxw vn)()nslls freely for 4.00 s until reaching the ground. What was the height above the ground f32n) v0xixsna4azq j( e wz6)w nsb)u,rom which the object was released?
A. 10.0 m
B. 20.0 m
C. 40.0 m
D. 80.0 m
E. 160.0 m
