Answer
$E\cup H$
Work Step by Step
The dog's flight drive is the strongest: $E$
Its fight drive is the weakest: $H$
The dog's flight drive is the strongest OR its fight drive is the weakest: $E\cup H$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.