Using a while loop statement and if statements to write a program that can be used at a department store's register that records the number of customers who spent between $0.00 - $200.00, $200.01 - $800.00, $800.01 or more at the end of a day, the program will print out the number of customers in each of categories.

Dereck works for long hours on his computer.  he frequently experiences physical strain by the end of the day because he does not follow an important rule of ergonomics with respect to the use of keyboards.  which of the following actions of dereck could lead to physical strain? a.  placing the keyboard exactly in front of him while typingb.  keeping hands and wrists straight while typingc.  using wrist pads throughout the dayd.  pounding at the keys on the keyboard while typinge.  resting his hands on the keyboard when he is not typing