Carl had eaten the last piece of cake. what is the verb tense

Pls read- recently i have been asking people to test me but people have been lying about subbing but its all good no matter what imma keep grinding till its my moment much love appreciated subscribe to me if u want (tonixwilson)

How can behavioral science be applied in improving public health? a.by tracking a disease to determine its sourceb.by creating promotions that improve health habitscboth by tracking a disease to determine its source and by creating promotions that improve health habitsd.neither by tracking a disease to determine its source or by creating promotions that improve health habits

Which syllable is stressed with the word retribution