Vanguard Traditional IRA

Hello, again. I rolled over to a Traditional IRA from a 401k, as you suggested. I asked to have 75% put in a Government Money Market Fund and 25% in an Equity Income Fund. He wanted to know if I meant Federal Money Market Fund. I’m 77 and have no clue what he’s talking about. He told me there is no specific Government Market Fund and to look at the Funds and get back to him. I don’t know what I’m looking at. Federal seems the closest. Thanks