The $X$ and $Y$ components of a force $F$ acting at $30^{\circ}$ to the $x$-axis are respectively:
- A$F, \frac{F}{\sqrt{2}}$
- B$\frac{F}{\sqrt{2}}, F$
- C$\frac{F}{2}, \frac{\sqrt{3}}{2} F$
- D$\frac{\sqrt{3}}{2} F, \frac{1}{2} F$
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