Correct answer choice is :
D) To act as a ceremonial role within the Senate.
Explanation:
The President pro tempore of the United States Senate is the second leading ranking leader of the United States Senate. Article One, Section Three of the United States Constitution renders that the Vice President of the United States is the President of the Senate, and mandates that the Senate must elect a President pro tempore to act in the Vice President's inadequacy. Unlike the Vice President, the President pro tempore is an elected member of the Senate, ready to express or vote on any matter. Elected by the Senate at large, the President pro tempore has experienced many events and some short commands. During the Vice President's inadequacy, the President pro tempore is authorized to control over Senate gatherings.
“We are at the end of our string. There is nothing more we can do.
The Columbian Exchange<span> greatly affected almost every </span>society<span> on earth, bringing destructive diseases that depopulated many cultures, and also circulating a wide variety of new crops and livestock that, in the long term, increased rather than diminished the </span>world<span> human population..</span>