Fleeing the mat occurs when a wrestler:

Fleeing the mat occurs when a wrestler avoids a scoring situation, which pertains to the actions taken to evade being in a vulnerable position where the opponent could score points. In the context of wrestling, this behavior undermines the spirit of competition where both athletes are expected to engage to earn points. When a wrestler deliberately leaves the mat to escape a scoring opportunity, it is viewed negatively, as it disrupts the flow of the match and could potentially encourage unsportsmanlike behavior.

The other choices do not accurately capture the definition of fleeing the mat. For instance, attempting a submission is a legitimate wrestling tactic aimed at forcing an opponent into a potentially winning position, while leaving the mat area for a break can happen for various reasons, such as injury or equipment issues, but does not inherently express avoidance of scoring. Receiving a warning may relate to actions deemed unsportsmanlike or outside the rules, but it is not the direct action of evading scoring, which defines fleeing the mat.