Mark the option in which the sentence is an example of passive voice.
Sigmund Freud viewed human nature as inherently antisocial, biologically driven by the undisciplined id's pleasure principle. (lines 21 to 23)
People who haven't met their most basic needs will have difficulty maturing. (lines 31 and 32)
Humans have been captivated by stories of heroes facing off against superhuman foes. (lines 49 to 51)
We have needed heroes who rise to the occasion, overcome great odds and take down giants.(lines 85 to 87)