Question 1, there are several correct answers for each part, provide what you believe is one good example for each. For Question 2, there is only one best answer for each part. Do not get brightness and luminosity mixed up. There is no data in the table on the sizes of stars. You will have to choose the best choice from your H-R Diagram plot. The text describes how size varies with position on the diagram. Do not consider any stars that are not in the above table. For Question 3, the answer is not directly in any of the data here, but is implied by the data.