The authors purpose is the main idea of the story. What is the story focused on? What is the main topic that is being discussed over and over again. Main ideas are usually at the beggining and end of paragraphs/stories! hope this helped!!!
Answer:
Many people with bad joints do exercises to restore the flexible function in their joints?
Explanation: Its a bad answer but it works
Your answer is D
Information from someone who was there when the event happend which has been unfiltered by other researchers