Multiple choice general knowledge sports Here are some sports. Which of the following is a martial art...? aikido polo squash none of the above Reveal answer Fill a bubble to check yourself A Correct answer Explanation Aikido is a Japanese martial art focused on self-defense using an opponent's momentum against them. Polo is a team sport on horseback, squash is a racquet sport, and 'none of the above' is incorrect since aikido is indeed a martial art.