Task: Question Answering
Input (English): Question: Find out the wrong number in the given sequence of numbers.
36, 54, 18, 27, 9, 18.5, 4.5

 Option A: 18.8

 Option B: 18.5

 Option C: 18.0

 Option D: 18.1

 Option E: 18.7
Output (English): Option B