Which one of the following judgements most closely conforms to the principle cited above?
A) Peggy acted responsibily in ordering new computers for the school last year because they turned out to be needed to an unexpected increase in enrollment this year
Makes no sense. We can't infer if she acted responsibly or not. Out.
B) Mary acted responsibily in firing John, for she first examined the details of his work record and listened to negative reports from some of his supervisors and coworkers
She listened to negative reports but this option does not indicate that she confirmed the accuracy of these reports. Therefore, from the foregoing, she didn't act responsibly. Out.
C) Toril did not act responsibily in investing the company's money in Twicycled Ink, for, though the investment yielded a large return, she had not investigated the risks associated with that investment
Suppose she did not have info about the risk, then you won't blame her for not reviewing such. So she may be responsible after all. Out.
D) Conchita did not act reponsibly in hiring Helmer to do the company's bookkeeping becuase Helmer made a mistake that cost the company a lost of money, though he had never been known to make such a mistake in the past
She acted responsibly because we can infer that the error was Helmer's first. Maybe she actually used previous records of helmer (which were good) as criterion to hire helmer.
E) Jennifer did not act responsibly in deciding where to go on her vacation becuase, instead of carefully weighing her options, she waited until the last minute and decided on impulse.
I am left with (E). Interesting one - I'm keen on the OA.