definiens: means, with respect to an Option Program, the period beginning on the Eﬀective Date and expiring upon theearliest of ( a ) [ * * * ] following the delivery of the Option Data Package or Partial Option Data Package, as the case may be, for such Option Program inaccordance with Section 4.1.2(a ) ( Option Data Package ), as such period may be extended in accordance with Section 4.1.2(b ) ( Incomplete Option DataPackage ), unless earlier terminated, ( b ) thirty ( 30 ) business days after the ﬁfth ( 5 ) anniversary of the Eﬀective Date, ( c ) the termination of thisProvisional Collaboration and License Agreement ( other than as a result of the execution of the Deﬁnitive ROFN and Option Agreement ) and ( d ) thetermination of the Definitive ROFN and Option Agreement