The escape velocity for a body projected vertically upwards from the surface of earth is $11\text{km/s}$. If the body is projected at an angle of $45^{\circ }$ with the vertical, the escape velocity will be:

1. A
   $11\sqrt{2}\text{km/s}$
2. B
   $22\text{km/s}$
3. C
   $11\text{km/s}$
4. D
   $11/\sqrt{2}\text{km/s}$