<prompt> Human: I got a job about 2 years which offers a 401k. I had no idea what I was doing and still dont Im 30 years old, and would like to know where to start investing. The company just started matching 3 and then half of the next 2. So Im contributing 5 of my pay. I also chose to go ROTH.Here is a screenshot of the funds that I can invest in:Any help would be greatly appreciated. Thank you.  <response>: Any of the four on the bottom of the list. Actually, theres only two options there, measured differently. I personally would put 100 in VTI. The key metric here is the expense ratio-- you want it as low as possible, and VTI is managed by Vanguard, which is typically listed as one of the best companies that manage this sort of thing. iShares seems to be managed by Blackrock, which isnt bad, but Id still skip them in favor of VTI.This is not a diversified portfolio-- you should, in the end, have some portion of your total retirement savings in bonds. Personally, Id do that by starting an IRA, probably with Vanguard, and putting about 20 to 30 of your savings there in bonds. 