Here are the answers to your questions:
Question 1
A) Which of the following religions has the central belief that can be described as “all life is suffering”?
Answer: Buddhism
Question 2
A) Which of the following is the correct definition of monotheism?
Answer: a faith or belief system in which a single god is worshipped
Question 3
A) Which of the following describes the distribution of Christianity?
Answer: Approximately 25 percent of its population lives in Europe, South America, and Africa.
Question 4
A) Which of the following religions is most commonly found having a majority population?
Answer: Hinduism