The best place where Carlos can invest his money in a low-risk investment would be to buy some shares.
This refers to the business plan that is made to put some money into a business venture with the aim of getting profit after a time period.
Hence, we can see that based on the fact that Carlos is young and has about $3,000 to put in a low-risk investment, it would be good for him to buy shares in a reputable company and get his money back with interest after some years.
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