If a small amount of acid is splashed on the skin, the best thing to do is. a. rinse thoroughly with water b. use the spill kit

rinse thoroughly with water 

Rinse the skin thorough water will help diluting the acid solution. Since the number is small amount, then it will be easier and faster too. When you spill a bit of acid you must remain calm because you might spill more if you are in panic. Spill kit mostly used for acid that dropped into the floor not the skin since the spill kitself