[单选题]
A butterfly moves with a speed of 12.0 m/s./d2 w(m4 z armk;gjvmg4uy scm2(w+1-9gtwrt.i .9txrv ;cbv.ru :ym The x component of its velocity is 8.0 t b;iu. y:..xcr9rvmv0 m/s. The angle between the direction of its motion and the x axis must be
A. $30.0^{\circ}$
B. $41.8^{\circ}$
C. $48.2^{\circ}$
D. $53.0^{\circ}$
