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A car accelerates from rest at a constant rate 'α' for some time, after which it decelerates at a constant rate 'β' and comes to rest. If the total time elapsed is 'T', the maximum velocity acquired by the car is:

A(αβT) / (α+β)

B(α+β)T / αβ

C(α^2 + β^2)T

DαβT