Bitcoin Grantor Trust (GBTC) - Pass Through Proceeds/Cost Basis

My wife owns a small number of shares of GBTC. She held the shares all year and sold nothing. However, the trust sold bitcoin twice a month to pay for expenses and the gains/losses are passed through to shareholders including my wife, and we have to manually adjust the cost basis based on ratios the trust publishes each year. Schwab's 1099 just shows no info for the cost basis.

I finally figured out how to adjust the cost basis. But my question is, in the Turbo Tax software, there's a question that asks "what did I sell"? Do I need to say "crypto" even though she didn't actually sell anything herself? I.e., the trust that she owns shares in sold crypto.

Also, on the 1099B the acquisition date is blank. Should I leave it blank or put in the date the GBTC was purchased? (No shares of GBTC was sold, it's the trust that sold anything.)

Thank you.