The graphs show the position s, velocity v = ds/dt, and acceleration a = d2s/dt2 of a body moving along a coordinate line as functions of time t. Which graph is which?
A. A = position, B = velocity, C = acceleration
B. B = position, C = velocity, A = acceleration
C. C = position, A = velocity, B = acceleration
D. A = position, C = velocity, B = acceleration
Answer: D
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