Solution
Checking option 1 )
12: 9 = 4:3, 16 : 12 = 4:3
Checking option 2)
13 : 11 = 13:11 , 5 : 4= 5:4
checking option 3)
30 : 45 = 2:3, 26 : 24 = 13:12
Checking option 4)
6 :10 = 3:5, 4: 10 = 2:5
So option A is correct
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