How Has the Tea Party Caucus Changed in Recent Congressional

How has the Tea Party Caucus changed in recent congressional sessions?

A) It has nearly disappeared as a force in Congress.
B) It has been a major force in creating new policy proposals for Congress to consider.
C) It has been supportive of Republican leadership's attempts to pass various legislative priorities.
D) It has been more defined by their opposition to existing policy than a coherent agenda of policy proposals.
E) It has had more power in the courts than in Congress.