It is important to calculate discounts independently to ensure that each discount is applied to the price of each product. ... It is also important to calculate them to know the real total price of the purchase you are going to make.
Option C and D.
Please correct me if im wrong.
Actually, people can only speculate what actually happened. Atheists have their beliefs and so do other religions. Christianity believes that when God created the world, he made the seas, oceans, rivers etc. :)