The correct answer is: B. short-sightedness
Expediency is the quality of being suitable or advantageous in the short term, but not necessarily in the long term. In politics, expediency is often used to justify decisions that are not in the best interests of the people, but that are seen as necessary to achieve a particular goal.
Novelty is the quality of being new or unusual. In politics, novelty can be used to attract attention and support, but it is not always a reliable guide to good policy.
Unsuitability is the quality of not being appropriate or fitting. In politics, unsuitability can be a problem when leaders make decisions that are not in the best interests of the people they represent.
Inconvenience is the quality of being difficult or troublesome. In politics, inconvenience can be a problem when leaders make decisions that make life more difficult for people, but it is not always a sign that a decision is wrong.
In conclusion, the correct answer is B. short-sightedness. Expediency is often used in politics to justify decisions that are not in the best interests of the people, but that are seen as necessary to achieve a particular goal.