OFFICIAL EXPLANATIONThe original sentence contains the correct idiom "to derive X from Y," where X and Y are both nouns. In this sentence, the use of the noun phrase "the laying of private television" maintains consistency and parallelism with the noun “benefit” mentioned earlier in the sentence.
(A) CORRECT. This choice is correct as it repeats the original sentence.
(B) The verb "to derive from" requires noun objects. Here, "laying" is not a noun. Moreover, "the public land" is not idiomatic; it should be "public land."
(C) The correct idiom is "to derive X from Y," not "to derive X by Y." Moreover, "the public's land" is unnecessary when "public land" would suffice.
(D) "To derive from" is correct in this choice. The wordy and unidiomatic construction "private television cables being laid on public land" fails to provide a noun that would ensure consistency with the noun “benefit” mentioned earlier in the sentence.
(E) The correct idiom is "to derive X from Y," not "to derive X by Y." Moreover, "land that was public" is wordy; "public land" is more concise.