Multiple choice general knowledge math & puzzles O O X X X X O O X X X O O X X ? ? X X X O O O X X O Reveal answer Fill a bubble to check yourself B Correct answer Explanation The pattern is O O followed by a decreasing number of X's: 4 X's, then 3 X's, then 2 X's. After 'O O X X', the next part of the cycle starts with 'O O'.