I would go with B based on the information provided here. However I would suggest that you go back and read through. It may make more sense the second time through.
It is all of the above, but by analyzing it further, I came to the conclusion that Drama is a scene, deeds or happenings, more than verbal speeches.
With that said, Dramatic irony includes ironic deeds and ironic happenings.
Your answer is A - <span>Urie Bronfenbrenner.
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This American psychologist developed the Ecological Systems Theory