Federal Taxes - Wages & Income - 1099-B

My 1099-B form says this:

Sales section title

This contains keywords like: short term, long-term, reported, not reported, covered, and not covered.Covered and reported mean the same thing.
Example: Short-term transactions for which basis is reported to IRS.

TurboTax is asking for me to make a selection under the "Sales section title".

 

Next to "Sales Section" is a drop-down box with six options:

- Short-term basis reported to IRS (covered)

- Short-term basis not reported to IRS (noncovered)

- Short-term did not receive 1099-B form

- Long-term basis reported to IRS (covered)

- Long-term basis not reported to IRS (noncovered)

- Long-term did not receive 1099-B form

 

I have absolutely no idea what to select.  How should I proceed?

 

Thank you for anyone who can provide help on this.