Sangwook on June 2, 2014
(1) Please explain why choice (c) and (d) can also be "must be true" according to the stimulus.
(2) Is the 1st sentence on the stimulus("The crux of creativity resides in the ability to manufacture variations on a them") sufficient and necessary condition clause although it doesn't have S&N condition terms( all, if, must, when...etc) on the sentence?
If choice(a) is "must be true, " then it seems that the 1st sentence has S&N condition though. ( Creativity ===> ability to manufacture variation :: Not ability to manufacture variation ==> Not creativity)
Melody on June 4, 2014
Sangwook on June 8, 2014