Identify the Laplace transform of the function $4tu(t-4).$

Multiple Choice

$(\frac{4}{5}\frac{16}{6})e^{-48}$

$(\frac{4}{5}-\frac{16}{8})e^{-4s}$

$(\frac{16}{9^2}-\frac{4}{8})e^{-4}$

$(\frac{16}{2}\frac{4}{3})e^{-4}$