The options of the question are: the comitte that reviews the bill, the majority party, the minority party, the members who vote on the bill.
The correct answer is the Majority Party.
The group or individual within the Senate that has the most power over what legislation is put on the agenda and whether is passed is the Majority Party.
The group within the Senate which have the most power is the majority party, headed by its president. That majority in the Senate has a leader called the majority leader. It depends on which party won the election. One member has the majority leadership and the other party has the minority leadership. Both leaders have the task of spokesmen for their respective party’s points of views or position in different the topics.