Please choose the correct ending to complete the given sentence: Finance and Business: [header] How to buy commercial notes [title] Open an account with a brokerage firm. [step] Commercial paper is rarely issued directly to individual investors, so you will need to do business with a broker in order to make a purchase. You can choose from a full-service brokerage firm or a no-frills online broker; both will allow you access to commercial notes.

Ending1: [substeps] If you don't already have an account with a stockbroker, consider avoiding commercial notes for a while. This type of debt is unsecured, and thus shouldn't be used as the foundation of an investment portfolio. Ending2: [substeps] The broker may also provide a business flash card or a business credit card. [title] Verify the goods or services they provide. Ending3: [title] Go to the company website and type in your social security number and email address. [step] This should open a web browser that automatically gives you access to the company website. Ending4: [substeps] If you are in the 70's, you can buy commercial street notes at around $10 a penny or $15 a day. If you're in the 90s, you'll likely save money on traditional direct deposit.

Answer format: ending1/ending2/ending3/ending4