The Laplace transform of a function is $\frac{s+1}{s\left ( s+2 \right )}$

The initial and final values, respectively, of the function are

1. $0$ and $1$
2. $1$ and $\frac{1}{2}$
3. $\frac{1}{2}$ and $1$
4. $\frac{1}{2}$ and $0$