Final answer:
Mutual funds are an attractive way for Dan to invest his $6,000 because they allow him to diversify his investment and reduce risk. By buying mutual fund shares, Dan can leave the investment decisions to professionals and receive a return based on the overall performance of the mutual fund.
Step-by-step explanation:
Dan is likely to find mutual funds an attractive way to invest his $6,000. Mutual funds are a type of investment that consists of a variety of stocks or bonds from different companies. By buying mutual fund shares, Dan can diversify his investment and reduce the risk associated with investing in just one or a few securities. He will receive a return based on how the mutual fund as a whole performs, which can be a more convenient and hassle-free option for someone who doesn't have much knowledge or time to pick individual stocks.