[单选题]
At what angle should a water-gun be aimed 5i49* ie n8nr;hziohein order for the water to land ww +w:d: wd6a*, ttkmvv;rrm u0tmhbuf+.75buith the greatest horizontal+tr:td:f,v .;mr0btuudwb vw h+ua*k65m 7mw range?
A. $0^{\circ}$
B. $30^{\circ}$
C. $45^{\circ}$
D. $60^{\circ}$
