How are hailstones formed it is a 10 mark question​

formed by the culomnibus or the stratus clouds that when hails are formed it is due to the high altitude height that it freezes?

d. new methods of assembly are introduced.

explanation:

this allows for the goods to be made on a larger scale. not faster because now it is shown to be made better, hence the greater productivity in the question. it is calling for something new to be introduced.