just a second thought on this argument. we need to provide " additional evidence" to support the argument. so B is wrong as it is repeating things already present in argument clearly. Now to provide additional support lets find out and highight the assumption in the argument. Argument says...

tricky question.
not compatible means contradict and hence answer id only D
as D says unintelligible music which has its original features removed -> is the most sophisticated
and passage says otherwise
all other choices could be true.

coice B is correct
totally agree with testluv reasoning, I also employed the same reasoning to arrive at B

answer (A),
evaluate the argument involves Yes / no answers for the corrrect option.
when the probability of collision due to break failure is too high = then tF is too low than it is not much safer to install this new feature
hence option A is the only one which is correct

Majority Tyranny

A majority taken collectively may be regarded as a being whose opinions and, most frequently, whose interests are opposed to those of another being, which is styled a minority. If it is admitted that a man possessing absolute power may misuse that power by wronging his adversaries, why should a majo...

only option D makes sense.
As author just says that political know how, which can be acquired by learning and apprenticeship, can only understand the political policies . And that too without throwing much light on this.
Hence D is a flaw in the argument.

Straight a . Simple question .

answer A

straight