For a 1099-B with RSU transactions, do I report Cost Basis ($0) or Adjusted Cost Basis?

My 1099-B and my financial institution's supplemental transaction report show my Cost Basis for RSU transactions as $0. However, the Adjusted Cost Basis is non-zero. TurboTax asks for "Cost Basis or Adjusted Cost Basis." Which do I report? Obviously, it works out much better if I can use Adjusted Cost Basis.