Explanation
Correct answer: D.
Choice D is the best answer. The sentence specifies the order in which different government entities were given the authority to regulate US airline safety, noting that this role shifted from the US Commerce Department to the CAA in 1938, then from the CAA to the FAA in 1958.
Why the other choices are wrong
Choice A
Choice A is incorrect because it misrepresents information from the notes. The authority to regulate airline safety was transferred to the FAA in 1958, not to the US Commerce Department. Moreover, the sentence misrepresents Quesada’s role as described in the notes.
Choice B
Choice B is incorrect. While the sentence mentions that all three entities had the authority to regulate US airline safety at different times, it doesn’t specify the chronological order in which they held that authority.
Choice C
Choice C is incorrect. The sentence only mentions when the FAA began regulating US airline safety; it doesn’t specify the order in which different government entities held that authority.