Final answer:
Aggravated assault is characterized by increased severity, often involving the use of a weapon to cause major harm. The correct answer to the question is (a) severity of the attack (weapon), as it is a factor that typically defines an aggravated assault.
Step-by-step explanation:
An aggravated assault is defined by key elements that increase its severity in comparison to simple assault. One such element is the severity of the attack, which might involve the use of a weapon. Aggravated assault charges are typically brought when an attack involves a deliberate and severe attempt to cause serious bodily harm to another person.
In this scenario, the severity often means the attacker attempted to or succeeded in causing significant injury through more grievous means, which might include weapons such as firearms, knives, or blunt instruments.
Minor injuries without weapons, mutual combat or verbal threats without physical harm do not usually rise to the level of aggravated assault. As the use of a weapon can elevate a simple assault to an aggravated one, the answer is (a) severity of the attack (weapon).