please do only mcq in 20 minute I obviously give u upvote

9. Which of the following responsibilities require(s) collaboration with some other class(es)? (a) Setting and getting attribute value(s) (b) Loading to and saving from secondary memory (c) Computing numerical results (d) All of the above (e) None of the above 10. Which of the following is NOT a software usability principle? (a) Developers must rely on usability guidelines (b) Ensure a sequence of actions achieves atomic tasks (c) Ensure users are aware of what they can (or should) do next (d) Use easy-to-understand encoding techniques (e) Provide the needs for different groups of users 11. Which of the following is/are TRUE about giving instance variables private access? (a) To ensure they are given only valid values (b) It gives flexibility to change class's internal structure without affecting user interaction (c) It embraces the principle of encapsulation (d) All of the above (e) None of the above 12. Which of the following is/are NOT CORRECT about Factory pattern? (a) Allows the creation of an object that depends on application-specific classes (b) Is one of the 'Gang of Four' patterns (c) Leverages on the principle of interfaces to solve the associated problem (d) Advocates the modification of the framework in question by the user (e) None of the above 13. Which of the following is/are NOT TRUE about exploratory domain model? (a) Is created during domain analysis (b) Are diagrams of entities and links that are found in the domain (c) May contain entities with multiple inheritance (d) All of the above (e) None of the above 14. Which of the following is/are NOT TRUE about system model? (a) Is an extension of system domain model (b) Contains utility, architectural, and user interface classes (c) May contain less than half of the classes required to develop a complete system (d) All of the above (e) None of the above