"Why do you have that round scar on your arm?" Devon's mother was wearing a sleeveless shirt. He could see a scar on her arm. The shape was circular, but it was left a mark the size of a nickel had to hurt quite a bit. He rubbed his arm and winced.

Here's a review of your answers:

3. ✅ Correct. Your explanation of Devon's worry is accurate based on the text.

4. ❌ Incorrect. The text was provided in the original image. The sentence that helps answer question #3 is: "This scar on my arm is from a vaccination I was given when I was a young girl. The immunization kept me and others who got the vaccine from getting a horrible disease known as smallpox."

5. ✅ Correct. Your answer for Edward Jenner's importance is correct.