definiens: means the written plan, as it may be amended from time to time by mutual agreement of the Parties, for the conduct by a Party of Pre - Option Development Activities for t he other Party ’s Collaboration Program in such first Party ’s Territory ( i.e., Brii Bio ’s conduct of Pre - Option Development Activities for a Vir Program in the China Territory or Vir ’s conduct of Pre - Option Development Activit ies for a Brii Bio Program in the United States ), setting for th, among other things ( a ) a description of such Pr e - Option Development Activities, including an estimated time line for performance of such Pre - Option Development Activities, ( b ) the quantities and timing of supply of Product and Compound for such Pre - Option Develo pment Activities, ( c ) the protocol for any Clinical Trial s, and ( d ) the Pre - Option Development Budget for su ch Pre - Option Development Activities