Politicians Who Have to Go Through Elections Tend to Focus

Politicians who have to go through elections tend to focus on the short-term net benefits of projects because of

A) voters' tendency to more easily see short-term benefits rather than long-term ones.
B) the special-interest effect of specific groups among the electorate.
C) the ability of government to coerce people to do things involuntarily.
D) pork-barrel politics and the principal-agent problem.