What is the best definition of intrinsic motivation

Astudent is researching evidence to support this claim: creating change is not an easy task. consider how this passage could support the claim. what kind of evidence does the passage include? 1. statistical data on the topic 2. someone else’s firsthand experience. 3. the writer’s personal experience. which reason could this evidence support? 1. quitting always makes things worse. 2. adults change more easily than teenagers. 3. it is difficult to convince others to change. !