e. it means "such as the basic principles of light, sound and magnetism". However, "the basic principles of light, sound and magnetism" is subtly ambiguous, in my opinion.
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Samir1Thank you. Can you clarify from here: "(like the way we say "the cities of London and Paris", for example). The latter meaning is the one that would obtain if "those of" were deleted"?When you say "the cities of London and Paris", it means that London and Paris are cities. In the same way, one interpretation of "the basic principles of light, sound and