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The value of $\int_{-\infty}^{+\infty} e^{-t} \delta (2t-2){d}t$, where $\delta (t)$ is the Dirac delta function, is

A. $\dfrac{1}{2e}$

B. $\dfrac{2}{e}$

C. $\dfrac{1}{e^{2}}$

D. $\dfrac{1}{2e^{2}}$

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