401k mutual funds?

Question

can any mutual fund or stock be purchased for a 401k, or is there 401k-specific stocks 

Answer 1

Sorry, your employer determines what's available in the plan.  

Answer 2

mutual funds are not specific to 401Ks.

Answer 3

Is it self directed or does your employer only let you choose between a dozen or so things?

Answer 4

It may vary by the agreement that your employer has made with Fidelity. Some employers choose a dozen or so funds from which you can choose.