Please choose the correct ending to complete the given sentence: Finance and Business: [header] How to make money as oil prices rise [title] Do research. [step] No matter what you're investing in, you need to make sure you go into the decision as well informed as possible. Reading an investment's prospectus is a good start, but your research should not end there.

Ending1: You need to research an investment before you buy in. You need to look at the historical returns on an investment. Ending2: Read industry publications, read magazines, and survey websites to get a better idea of the market for oil. [substeps] Find sources you like before making any investment, just in case the sources aren't reputable or trustworthy. Ending3: Research will have much more to do with what you need, who you are investing with, and exactly what your current profit and loss goals are. [title] Decide whether you want " hard " or " soft " investments. Ending4: Research what kind of oil-related investments are most likely to be profitable. [substeps] Understanding the price range of oil-related investments helps you to draw up an accurate account.

Answer format: ending1/ending2/ending3/ending4