[单选题]
A new car manufacturer advertode;t.y8w 5jb+ 1 9zx-mli vzugvy. y1ises that thei: ,9l xj4a;6us.u qlay0riw tbr car can go "from zero to sixty in 8 s". This is a description 6 i uatybua;q4w. 9r:lsl0xj ,of
A. average speed.
B. instantaneous speed.
C. average acceleration.
D. instantaneous acceleration.
