Which of the Following Best Exemplifies the Way a Sentence

Which of the following best exemplifies the way a sentence should be structured when delivering negative news?

A) The fan was damaged due to fluctuation in the power supply, so we cannot help you with any repair costs.
B) You apparently did not read the instructions, so it is not our fault that your product was damaged.
C) It is your responsibility to read the terms and conditions before purchasing a product.
D) The television you bought did not have a warranty, so we cannot repair it without payment.
E) We cannot make a refund, but you may choose a comparable product from our website.