An Arrow Is Shot, from a Bow, at an Original

Multiple Choice

An arrow is shot, from a bow, at an original speed of v_o. When it returns to the same horizontal level, its speed will be

A) 9.8 v_o.
B) 2 v_o.
C) 1/2 v_o.
D) v_o.
E) 4 v_o.