<prompt> Human: This is a very basic question. I have a 401k with fidelity. I have an asset mix with stocks and bonds. Who does the buying for my 401k? Does someone at Fidelity manage my account and make the decisions for me? Am I able to see what specific stocks and bonds I own?  <response>: You select which funds you invest in. The funds buy and sell stock according to their stated investment objectives. 