What is the output of the code shown below? z=set('abc') z.add('san') z.update(set(['p', 'q'])) z

• A. {‘abc’, ‘p’, ‘q’, ‘san’}
• B. {‘a’, ‘b’, ‘c’, [‘p’, ‘q’], ‘san}
• C. {‘a’, ‘c’, ‘c’, ‘p’, ‘q’, ‘s’, ‘a’, ‘n’}
• D. {‘a’, ‘b’, ‘c’, ‘p’, ‘q’, ‘san’}