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3) (10 points) Use the last digit of your phone number and create a Set A with that number of elements. Write your set using Roster Form. Identify the cardinality of your Set A using the correct notation. Identify the number of subsets and proper subsets of your Set A. Write a sentence or paragraph explaining the difference between the number of subsets and proper subsets. 4) (5 points) Create a Set B with your two favorite numbers. Create a Set C with three initials of your name (if you don't have three initials make one up, if you have more than three initials use your favorite three). Write your sets using Roster Form. Write the Cartesian Product of the two Sets CX B