The action words among the options which the poet uses to paint the picture of youth are the following:
D. Climbing
E. Leaping
F. Barking
Action words are simply verbs, that is, words that indicate an action that was performed by a subject. Since the words "over," "elephant," and "mid-stream" are not verbs, we can eliminate them.
Therefore, the correct answers for this question are "climbing," "leaping," and "barking." These verbs indicate three different actions, and they are used by the poet to paint the picture of youth. Thus, options D, E, and F are correct.
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