Final answer:
Tickets at an arcade are primarily earned based on the player's score, but can also be given for participation, distributed randomly, or adjusted based on game difficulty.
Step-by-step explanation:
In arcade games, tickets are typically awarded based on one or more factors related to gameplay. The most common method for earning tickets at an arcade is option A) Tickets are earned based on the player's score. The higher the score, the more tickets a player can earn. On the other hand, some arcades might have promotional times or special games where option B) Tickets are given for participation, which means just by playing, you earn tickets, irrespective of score. Option C) Tickets are randomly distributed could apply to certain games, such as claw machines or other games of chance. Lastly, option D) Tickets are awarded based on game difficulty is less common, but some arcades might use varying ticket pay-outs based on the difficulty setting of a game, if such an option exists.