Final answer:
The paragraph where George Hadley thinks about the children being locked out of the nursery and his troubling sensations associated with their time spent in the African setting most strongly supports the theme concerning the children's overuse of the virtual environment.
Step-by-step explanation:
Based on the selections given, the paragraph which further supports the answer to Part A of the question related to the story "When Wendy Grows Up" from Peter Pan would likely be the one where George Hadley contemplates the children spending too much time in the African veldt within the nursery.
This excerpt provides insights into George Hadley's concerns about the nursery's effects and the children's excessive use of it, mirroring the themes of overindulgence and the dangers of escapism that are present throughout the story.
The paragraph is:
"As for the nursery, thought George Hadley, it won't hurt for the children to be locked out of it a while. Too much of anything isn't good for anyone.
And it was clearly indicated that the children had been spending a little too much time on Africa. That sun. He could still feel it on his neck, like a hot paw. And the lions. And the smell of blood. Remarkable how the nursery read the thoughts in..."
This paragraph shows George's realization of the potential negative impacts of the technologically advanced nursery on his children, as they immerse themselves in a virtual African savannah.
His physical sensation of the sun and awareness of the nursery's ability to materialize thoughts emphasizes the intense realism the virtual environment can create, supporting the idea of the nursery's potentially harmful effects on the children.