Rheumatic fever is an autoimmune disease that inflames the body's tissues, such as the joints and heart. Healthcare providers may also call it acute rheumatic fever. It happens when the body's immune system overreacts to a strep throat or scarlet fever infection that hasn't been fully treated
Answer:
A. ability to work productively in School
Explanation:
A characteristic of a positive person is their ability to work productively in school.
School is the most important out of sports, video games, and art.