The answer is A. a president pro tem.
The President pro tempore of the United States Senate is the second-highest-ranking official of the United States Senate, who presides over the chamber in the absence of the vice president.
Answer:
stress and anxiety have been implicated as contributors to many chronic diseases and to decreased quality of life, even with pharmacologic treatment. Efforts are underway to find non-pharmacologic therapies to relieve stress and anxiety.
Explanation: