After you have entered your Deposit Amount you will then come to the next field called the Deposit Method. This is how you will tell Kraken.com which method you want to deposit through.
If you click the on arrow within the Deposit Method field you will get a drop down menu. At this point its really a personal choice you are making here. You will want to select the option you want to go with. If you make a selection you will see the additional fields below will populate with information you will need. If you change your selection, the information also changes.
Select a Deposit Method you are comfortable with.