[单选题]
A new car manufacturerckou/xp0* 6g4sfi li) r*ao n- advertises that the)9hexi0: pij hir car can go "from zero to sixty in 8 s". This is a descrip 09h) jhi:xipetion of
A. average speed.
B. instantaneous speed.
C. average acceleration.
D. instantaneous acceleration.
