Which one of the following is the correct Laplace transform

Which one of the following is the correct Laplace transform of the signal in the given figure?

1	[1 - e^-Ts(1 + Ts)]
T²

1	[e^-Ts(1 + Ts)]
T²

1	[e^-Ts(1 - Ts)]
T²

1	[1 - e^-T(s + Ts)]
T²