What is the correct descending order of the ratios 17: 42, 19: 21, 1: 7, 11: 13, 23 : 26 ?
A23: 26, 19: 21, 11: 13, 17: 42, 1 : 7
B19: 21, 23 : 26, 11: 13, 1 : 7, 17 : 42
C19: 21, 11: 13, 23 : 26, 17: 42, 1: 7
D19: 21, 23: 26, 11: 13, 17: 42, 1 : 7
A23: 26, 19: 21, 11: 13, 17: 42, 1 : 7
B19: 21, 23 : 26, 11: 13, 1 : 7, 17 : 42
C19: 21, 11: 13, 23 : 26, 17: 42, 1: 7
D19: 21, 23: 26, 11: 13, 17: 42, 1 : 7
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