This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to cook potatoes in a pressure cooker 
Insert the steamer insert. 
Follow your pressure cooker manual for using the steamer insert. 
Add potatoes to the pressure cooker.


[1]. Again, follow this same instructions on how you cook your potatoes, this refers to how thick they will be : 1 lb. ( 454 g) of potatoes is about the right amount for an average pressure cooker.
[2]. This should come with the recipe, so be sure to look it over! Ensure your pressure cooker is full before beginning the next step. Turn on the pressure cooker and allow the pressure cooker to bring the pressure down a bit.
[3]. Add the amount of water called for in your pressure cooker manual. The mirro booklet says to add 4 cups water to the pressure cooker.
[4]. As with all steam cooking methods, use only as many potatoes as you want to cook. You can use 2 tbsp at first and then add more for 1 minute at a time until all potatoes have been added.
The answer is:
[3].