What is the term for a situation where both teams commit fouls at the same time but not against each other?

The correct term for a situation where both teams commit fouls at the same time but not against each other is a double foul. In basketball, a double foul occurs when two opposing players commit personal fouls during the same play. This can happen when players engage in actions that are deemed illegal under the rules, but these fouls are not directed at each other. As a result, the fouls offset each other, typically leading to the ball being awarded to the team that was not in possession at the time of the fouls.

The option that mentions "simultaneous foul" does not accurately capture the specific circumstances of two players from different teams committing fouls simultaneously, as it lacks the clarity provided by the term "double foul." The term "multiple foul" typically refers to instances where several players commit fouls, but this does not specifically apply to two players from different teams committing fouls at the same time. Meanwhile, "simultaneous unsporting foul" is a phrase that could imply specific types of infractions but does not encompass the broader definition of fouls that are individual in nature and not specifically unsporting. Thus, "double foul" is the term that most accurately defines the scenario described in the question.