<prompt> Human: I just turned 18 and put 3000 from my summer job into a Roth IRA. There are so many ways I can choose to invest the money and I was wondering if anyone can provide tips to help me narrow down what positions I want to put it in given a 2055 projected retirement date. I understand the differences between stocks, bonds, options, mutual funds. ETFs, etc. but I would like some specific suggestions regarding what would provide the best risk management for long term growth.  <response>: Put it in a target date fund. 