Study the following layout information:
* Tree $\text{E}$ is located to the North-East of tree $\text{B}$.
* Tree $\text{A}$ is situated $15\text{ m}$ exactly to the East of tree $\text{B}$.
* Tree $\text{B}$ is situated $40\text{ m}$ exactly to the West of tree $\text{D}$.
* Tree $\text{C}$ is to the North-West of tree $\text{A}$ and lies directly on the straight line connecting $\text{B}$ and $\text{E}$.
* Tree $\text{A}$ is located $30\text{ m}$ directly to the South of tree $\text{E}$.

What is the linear straight-line distance between tree $\text{A}$ and tree $\text{D}$?

1. A
   $16\text{ m}$
2. B
   $25\text{ m}$
3. C
   $35\text{ m}$
4. D
   $30\text{ m}$