Invoking a cloture is the only defense available to a Senate's on filibuster.
Filibuster refers to the tactics used in parliamentary procedure by one or more senators to delay or prevent debate or votes on a specific proposal.
Some purpose of the Filibuster tactics includes:
- to prolong debate
- to delay or prevent a vote on a bill
- to delay vote on resolution or amendment
In parliament, a cloture means a process aims to bringing a debate to a quick end.
Therefore, the Option B is correct because invoking a cloture is the only defense available to a Senate's on filibuster.
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