In What Way Do Single-Issue Groups Negatively Influence the Stability

In what way do single-issue groups negatively influence the stability of the political system?

A) Because of their tactics and unwillingness to compromise, they can cause public policy to come to a standstill.
B) Single-issue groups tend to lead to fracturing of established political parties by their members, which slows the political process.
C) Because of their decisiveness, public referendums become more frequent on single issues, which prevents the legislature from working on other issues.
D) Single-interest groups drown out all other issues that are not related to their own, reducing the ability of the legislature to acknowledge the general public's needs.
E) Historically, cooperation between powerful single-issue groups and politicians has resulted in significant degrees of corruption.