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I selected D, but the correct answer is E. Can someone help me understand why D is wrong?
If I put Gina in the Wednesday slot, I am wondering why this pattern won't work:
HJGHFJ
Struggling to see what rule I am violating. Thanks.
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Q14 is an acceptable situation question, so I think you might be talking about Q19? Q19 gives us an additional premise that F drives exactly twice during the week, and that F doesn't drive on Tuesday or Wednesday. The situation you have above only has F driving once, so that is why (D) is incorrect. Since it was not violating any of the original rules but instead the one given in the premise, that might be why it looked correct.
Other way to see (D) is incorrect: Since F already can't drive on Monday, that only leaves us with Thursday, Friday, and Saturday as the possible days for the two Fs. Since they can't be consecutive that means F must drive on Thursday and Saturday. J must drive on Wednesday or Saturday, and so if J can't be on Saturday, it must be on Wednesday. Thus, G can't drive on Wednesday.