Final answer:
The line that supports the theme of a world in constant change from 'Changing Times' is 'D) Could you perhaps help me locate a form using the ARPAnet?' This line highlights the technological evolution from ARPAnet to the internet, emphasizing change in technology and communication.
Step-by-step explanation:
From the provided lines in Changing Times, the one that supports the theme that the world is constantly changing is:
D) Could you perhaps help me locate a form using the ARPAnet?
This line references the ARPAnet, which was an early form of the internet. The mention of technology that is now considered outdated suggests a historical shift towards the modern internet. This subtly implies the theme of change, especially in the context of technology and communication. The ARPAnet was a precursor to the internet, reflecting technological evolution and the dynamic nature of human innovation.