Which of the following options will replace the question mark (?) in the given series?
109, 101, 93, 85, 77, ?

Given: 109, 101, 93, 85, 77, ?

Logic: The difference between each consecutive number is 8.

To identify the pattern, look at the difference between consecutive numbers:

109−101=8

101−93=8

93−85=8

85−77=8

So, to find the next number in the series, subtract 8 from 77:

77−8=69

Thus, the next number in the series is 69.

Thus, correct option is (c).