589654237, 89654237, 8965423, 965423, ?

Answer: Option D

The given series is: 589654237, 89654237, 8965423, 965423, ?
Step 1: Observe the pattern in the series.
Step 2: The first number 589654237 loses the first digit '5' to become 89654237.
Step 3: The second number 89654237 loses the last digit '7' to become 8965423.
Step 4: The third number 8965423 loses the first digit '8' to become 965423.
Step 5: The fourth number 965423 loses the last digit '3' to become 96542.
Pattern Observed: The series alternates between removing the first digit and the last digit.
Final Step: Following this pattern, the next number after 965423 should be 96542 (removing the last digit '3').
Thus, the correct answer is: 96542 (Option D).