In the following question, select the related letters from the given alternatives.
AB : I :: CA : ?
AA
BP
CN
DS
AA
BP
CN
DS
Related Questions:
Select the option that is related to the third number in the same way as the second number is related to the first number.
91 : 104 ∷ 161 : ?
Select the option that is related to the fifth number in the same way as the second number is related to the first number and the fourth number is related to the third number.
14 ∶ 19 ∶∶ 25 ∶ 32 ∶∶ 103 ∶ ?