[单选题]
A 400-m tall tower casts a 600-m long 4euex0 + k qfy5mz4pc.shadow over a level ground.(j1 ioezzac1ha+u2la(u dte:j-7 eh 8 At what angle is the Sun elevated abth 1 8czida a-jue+:l(j 27e(oe1azhuove the horizon?
A. $34^{\circ}$
B. $42^{\circ}$
C. $48^{\circ}$
D. can't be found; not enough information