Consider the following sets. A  =  {12} B  =  {10 + 2} C  =  {10, 2} D  =  {26} E  =  {2, 6} (a) What is the cardinality of each set? |A|  =    |B|  =    |C|  =    |D|  =    |E|  =    (b) Which of the sets are equivalent? A ↔ B ↔ D; C ↔ E A ↔ B ↔ C; D ↔ E A ↔ B ↔ E; D ↔ C A ↔ B ↔ C ↔ D ↔ E A ↔ B; C ↔ D ↔ E (c) Which of the given sets are equal? D = E A = B A = B = D; C = E A = D = E; B = C C = E

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