My sales cat on my 1099-B is Code X. But there is no option to choose code x. so what am I supposed to do?

[KiaraE]

You will choose Box X - Holding period and cost basis NOT reported to the IRS. I have provided a screenshot below.

[lkl87]

THEN FOR BOX 2 IT WANTS TO KNOW IF IT WAS LONG OR SHORT TERM

[KiaraE]

If you owned an asset, such as stock, for a year or less before selling it, any gain or loss from a sale is short-term.

If you owned it for more than a year, you have a long-term gain. The distinction is extremely important, since tax rates on long-term gains are generally significantly lower than those on short-term gains.