[单选题]
02.17: The motion of a circus clown on a uxsu8w lmdf6v7/ yf)/nnicycle m(d:h84 rwp4 hl;nhu3;btycuwoving in a straight line is shown in the gra uwh4p:t nwch;dbhy4ur8l(;3 ph below.
What would be the acceleration of the clown at 5 s?
A. $1.6\;m/s^2$
B. $2.0\;m/s^2$
C. $3.4\;m/s^2$
D. $8.0\;m/s^2$
E. none of the above