Answer:
O all of the above
Step-by-step explanation:
All of the variables mentioned - size, speed, and mass - can affect the impact crater that an asteroid leaves behind.
The size of the asteroid determines the size of the impact crater. A larger asteroid would create a larger impact crater compared to a smaller asteroid.
The speed of the asteroid affects the amount of kinetic energy that it carries. The higher the speed, the greater the kinetic energy, which results in a larger impact crater.
The mass of the asteroid also influences the impact crater, as a more massive asteroid would have more kinetic energy and greater momentum, resulting in a larger impact crater.