Hi gmat62,

You are correct that this SC is based primarily on Parallelism rules.

1) Parallelism: This sentence presents a list of 3 items, so all 3 must be written in the same style/format. The first two items are "peaceful conflict resolution" and "readily available counseling" - 2 nouns, so we need the third item to also be a noun. Eliminate A, B and C.

2) Modification/Style: While D and E "sound" similar, the wording of each convey different ideas.

First, D focuses on "a decreased prominence of....violence", while E focuses on "a decreased prominence of....television shows..." Based on the first 2 items in the list, the "intent" is probably to decrease the violence, not the television shows.

Second, answer E uses a "contrast keyword" incorrectly. The phrase "...shows that contain abundant BUT...casual violence" implies that "abundant" and "casual" are contrasting ideas, but they're not. Taking a closer look at answer D, you'll notice the phrase "abundant AND casual violence" which describes two aspects of the violent content that the mothers are concerned about.

Either way, Eliminate E.

Final Answer: D

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Rich