The correct answer is C; Because Robin is 10 years old and is expected to learn about knighthood from Sir Peter. His mother also wants Robin to be safe from the plague.
Further Explanation:
Robin is a character in the book "The Door In The Wall"." At the age of 10, he is to old to be looked after in the era the book was written. The story is set in the Middle Ages. His mother left to go and serve the queen and the father has left to fight in the Scottish war.
His mother believed that since he would be going with Sir Peter de Lindsay he would be safe from the plague and this is an advantage to his health. In the story, Robin is a very lonely little boy and is also rude to others. Robin had become ill and the mother was very scared of the plague and all the people that had already died from it. He was also expected to learn about being a knight and Sir Peter is the one who would teach him.
Learn more about knighthood at https://brainly.com/question/4521850
#LearnwithBrainly