Which test should you see if you suspect that a casualty has had a stroke ?

Question

$\begin{array}{1 1} (a)\;\text{face, arms, speech, test} \\ (b)\; \text{alert, voice, pain, unresponsive} \\ (c)\; \text{response, airway, breathing, circulation} \\ (d)\; \text{pulse, respiratory rate, temperature } \end{array}$