Please choose the correct ending to complete the given sentence: Finance and Business: [header] How to buy us savings bonds [title] Learn about the types of us savings bonds. [step] There are two different types of us savings bonds the treasury department offers. Learning about these two types of bonds can help you figure out the best type of bond for your needs.

Ending1: [substeps] The two types of bonds are ee bonds and i bonds. There are many similarities between ee and i bonds, but there are a few difference including the form in which they come and the amount of interest earnings. Ending2: [substeps] The treasury department charges money each year by multiplying the bond's annual annual percentage by 15 (currency) to get a bond you can spend the rest of your life making money from. The amount of actual money is the unit that holds the bond's annual percentage. Ending3: [substeps] The treasury department offers interest rates and subannual fees on ordinary bonds. These rates range from $1000 to $50000 in interest charges. Ending4: [title] Consider the company you are buying from. [step] It is important that you understand the company on a financial level before purchasing the bonds.

Answer format: ending1/ending2/ending3/ending4