It was E. But instead of "Long-term basis not reported to IRS", the 1099-B had been uploaded to Turbotax with "Unknown term basis not reported to IRS", and I think because of that it didn't give me the option to fix the cost basis. So when I deleted that 1099-B and typed in a new 1099-B myself choosing "Long-term basis...", it gave me the option to fix the cost basis.
Thanks for your help!!!
