6) What is the data type of {3, 7, 'one', 'two"}, a) dictionary b) set c) list d) tuple Answer: 7) (4 points) set() create an empty() create an empty a) set b) tuple c) list d) dict Answer: 8) (4 points) What're the results for these operations: a. {10, 20, 30} - {5, 10, 15, 20) b. {10,20,30}^{5, 10, 15, 20} c. {10, 20, 30) {5, 10, 15, 20) d. {10, 20, 30} & {5, 10, 15, 20) Answer: 9) (4 points) What are the print results: roman numerals - {"T: 1, "II: 2, TIT: 3, "V":5} a. print (roman numerals) b.print(list(roman numerals.keys)) c.print(list(coman numerals.values()) d. print(list(roman numerals. items))