chunjuwu
Campaigning for election to provincial or state office frequently requires that a candidate spend much time and energy catering to the interests of national party officials who can help the candidate to win office. The elected officials who campaign for reelection while they are in office thus often fail to serve the interests of their local consistencies.
Which one of the following is an assumption made by the argument?
(A) Catering to the interests of national party officials sometimes conflicts with serving the interests of a provincial or state official’s local constituencies.
(B) Only by catering to the interests of national party officials can those who hold provincial or state office win reelection.
(C) The interests of local constituencies are well served only by elected officials who do not cater to the interests of national party officials.
(D) Officials elected to provincial or state office are obligated to serve only the interests of constituents who belong to the same party as do the officials.
(E) All elected officials are likely to seek reelection to those offices that are not limited to one term.
Source : LSAT PrepTest 21
This question helps us understand the distinction between necessary and sufficient assumptions. It is all based on quantifiers here.
Premise: Campaigning for election to provincial or state office frequently requires that a candidate cater to the interests of national party officials.
Conclusion: The elected officials who campaign for reelection while they are in office thus
often fail to serve the interests of their local constituencies.
The conclusion is not that elected officials who campaign for reelection while they are in office
always fail to serve the interests of their local constituencies. We are saying 'they often fail to serve.' They are required to cater to national party officials and hence they often fail to serve local interests. They could sometimes serve local interests while catering to national party officials, but they often fail.
What is the assumption here? That if an elected official caters to national party officials, he could fail to serve the interests of the local constituencies. This is necessary.
Look at the options.
(A) Catering to the interests of national party officials sometimes conflicts with serving the interests of a provincial or state official’s local constituencies.Correct. This is an assumption. Let's negate it. Negation of 'sometimes' will be 'never'
Negated (A): Catering to the interests of national party officials never conflicts with serving the interests of a provincial or state official’s local constituencies.
Now can our conclusion hold? No. We are given that Catering to the interests of national party officials never conflicts with local constituencies' interests. Then the elected officials would not fail to serve the interests of their local constituencies while campaigning. Makes complete sense.
This is the answer.
(B) Only by catering to the interests of national party officials can those who hold provincial or state office win reelection.Our conclusion is not about winning elections. It is about elected officials failing to serve the interests of their local constituencies.
(C) The interests of local constituencies are well served only by elected officials who do not cater to the interests of national party officials.Now this is interesting and it may make you question your selection of (A) even though you were sure that (A) was correct. That is because it is a sufficient assumption which fits better with the conclusion but is not the right answer when we are looking for a necessary assumption (called just 'assumption').
It tells us that not catering to national party officials is necessary to serve the interests of local constituencies. But this is not an assumption of the author. He only says that they often fail to serve the interests of local constituencies, not that they cannot serve the interests of local constituencies if they cater to national party officials. Hence this option is not a necessary assumption.
It is, in fact, a sufficient assumption, not necessary. Let's plug it with the premises to see whether the conclusion logically follows.
Premises:Campaigning for election to provincial or state office frequently requires that a candidate cater to the interests of national party officials.
Not catering to national party officials is necessary to serve the interests of local constituencies
Conclusion: The elected officials who campaign for reelection while they are in office thus often fail to serve the interests of their local constituencies.
Our conclusion logically follows from the given premises now.
Hence option (C) is not a necessary assumption but a sufficient assumption.
(D) Officials elected to provincial or state office are obligated to serve only the interests of constituents who belong to the same party as do the officials.Irrelevant. No discussion on which type of local constituents they are obligated to serve.
(E) All elected officials are likely to seek reelection to those offices that are not limited to one term.Whether all elected officials seek reelection or not, we don't care. We are discussing what happens when they do seek reelection.
Answer (A)Discussion on Assumption Questions:
https://youtu.be/O0ROJfljRLUA Hard Assumption Question:
https://youtu.be/0j4tovGifIg