Step 1: Identifying the pattern.
Observing the given sequence:
\[
285, 253, 221, 189, ?
\]
The difference between consecutive terms is:
\[
285 - 253 = 32, \quad 253 - 221 = 32, \quad 221 - 189 = 32
\]
Step 2: Finding the next term.
\[
189 - 32 = 157
\]
Thus, the correct answer is (C) \( 157 \).