[单选题]
If the acceleration of an object is always direur ,.,xsp k drct1j9x c rvrwk40u-0h(ctet,s;3gc kp di4r-dveje0tg*tcg39w phy *++qd perpendicular to its velocitk4w pd+ph ig;v -0ycs tqr*33g+e 9dtgc*ej,ty,
A. the object is speeding up.
B. the object is slowing down.
C. the object is turning.
D. this situation would not be physically possible.
