Step 1: Identify the pattern of the series.
The series is: \( 3, 10, 27, 4, 16, 64, 25, 125 \).
We observe that each term alternates between squares and cubes:
\[
3^2 = 9, \, 2^3 = 8, \, 4^2 = 16, \, 5^3 = 125.
\]
Looking at the fourth term \( 4 \), this does not fit the expected sequence as it should be a square or cube. Hence, \( 4 \) is the wrong term.
Step 2: Conclusion.
The incorrect term in the sequence is \( 4 \), so the correct answer is (C) 4.

