What steps would you take to control bleeding from a nosebleed?

Question

$\begin{array}{1 1} (a)\; \text{Sit casualty down, lean forward and pinch soft part of nose.} \\ (b)\; \text{Sit casualty down, lean backward and pinch soft part of nose.} \\ (c)\; \text{Lie casualty down and pinch soft part of nose.} \\ (d)\; \text{ Lie casualty down and pinch top of nose.} \end{array}$