Which of the following pairs of numbers ...

Which of the following pairs of numbers are co-prime?
(i) 25 and 105 `" "` (ii) 59 and 97 `" "` (iii) 161 and 192

A

(ii) and (iii)

B

(i) and (iii)

C

All of these

D

None of these

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The correct Answer is:

A

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