__ diligence; reasonable efforts
I believe the answer is:
due
(Other definitions for due that I've seen before include "Owing, unpaid" , "Rightful" , "Owed, or payable immediately" , "Scheduled to arrive" , "Deserved or unpaid" .)
I believe the answer is:
due
(Other definitions for due that I've seen before include "Owing, unpaid" , "Rightful" , "Owed, or payable immediately" , "Scheduled to arrive" , "Deserved or unpaid" .)