A body is in equilibrium under the action of three coplanar forces P, Q and R as shown in the figure. Select the correct statement [AFMC 1994]

• A.                 \[\frac{P}{\sin \alpha }=\frac{Q}{\sin \beta }=\frac{R}{\sin \gamma }\]
• B.                                 \[\frac{P}{\cos \alpha }=\frac{Q}{\cos \beta }=\frac{R}{\cos \gamma }\]
• C.                 \[\frac{P}{\tan \alpha }=\frac{Q}{\tan \beta }=\frac{R}{\tan \gamma }\]
• D.                                 \[\frac{P}{\sin \beta }=\frac{Q}{\sin \gamma }=\frac{R}{\sin \alpha }\]