Write a Python function named backwards that takes two str parameters: an input filename and an output filename. The function shall open the input file, read its contents, and create the output file with the letters of each line in reverse order. Notes: The newline character ('\n') is not shifted to the beginning of the line. The str type does not have a method named reverse; list does, but do not use it here. You do not have to provide comments for this code.

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