by christine.defenbaugh Fri Oct 11, 2013 4:42 pm
Thanks for your question alejoroarios!
For this type of inference question, we are asked to interpret how a particular phrase is used in context. First stop, the passage!
Line 38 contains the quote "standard pricing pattern", which is then described in more detail in lines 39-47. Take note of the fleshed out description - this pattern occurred when a particularly prized variety is developed (lines 39-40), as certain varieties because fashionable (line 43), and resulted in the rise in the price of some original tulip bulbs (line 42).
So, it's not safe at all to infer that the author means this pattern will occur in every case! He points out three times that this is limited to only certain tulip bulbs.
This matches up perfectly with (D) - a pattern that regularly occurs in certain kinds of cases.
(A) measuring against other pricing patterns is not mentioned.
(B) no commonly agreed-upon criteria are mentioned.
(C) there is no value judgment of the pattern.
(E) "exemplar" means either typical example, or excellent model. The pricing pattern is not an example of anything, nor is it a model to be mimicked. One could argue that the tulip situation itself is an exemplar of the pricing pattern, but that's a different relationship, and that's not what the question is asking for.
Be very careful about the definition of words like "exemplar"! Your breakdown above does not reflect its true definition.
Please let me know if that completely answers your question!