Who’s first? Check your application of the penal code! They’ll be obvious at first glance… but right-of-way signs and rules can easily be misleading.

goes last

 Vehicle  C is leaving a minor road to enter a major road. A vehicle entering a major road must yield to   traffic  already on that road, unless road signs indicate otherwise.

Therefore, C waits for B and then A to pass before continuing.

Final answer

reccipes