The diagram depicts a displacement vector with magnitude $5.0\,\text{km}$ at an angle of $53^\circ$ to the horizontal. What is the vertical component of this displacement vector?
- A$3.0\,\text{km}$
- B$4.0\,\text{km}$
- C$5.0\,\text{km}$
- D$6.6\,\text{km}$