Question 8 (1 point) It is not necessary to add comments to your Python code. O a) True O b) False Save Question 9 (1 point) Which of the following is true regarding Python progamming instructions? a) a collection of statements is known as a script O b) a statement is a unit of code that can be interpreted and then executed by Python O c) a statement can be executed in interactive mode; a collection of statements can be executed in a script d) all of the above statements are true