Final answer:
The 1950 APSA article indicates that the political parties' move away from being too similar to being highly polarized reflects the weaknesses of the party system, particularly in the context of bipartisanship and collaboration.
Step-by-step explanation:
The article from the American Political Science Association's Committee on Political Parties in 1950 reflects on the strengths and weaknesses of political parties that can be exploited during decision-making processes in Congress. Option (B), the article emphasizes the weaknesses of party polarization, seems to fit best, as it discusses the historical shift from a lack of distinct party agendas to an era of stark ideological differences and competiveness between parties, starting in the 1990s. This polarization has led to fewer moderates in Congress, more consistent party-line voting, and potentially less collaboration across the aisle. However, it does indeed offer a clear choice to voters, reflecting a healthy sign of democracy.
Option (A) mentioning the strengths of cooperation and bipartisanship, (C) talking about the strengths of political maneuvering, and (D) pointing out the weaknesses of transparency and accountability, do not align as well with the article, which focuses more on the negative outcomes of less distinguishable party policy positions in the past to the newer, more pronounced divide between party ideologies leading to less bipartisan agreement.