All of them are used but I don't think a handwritten signature is vital
I believe that the answer is D. But i might be wrong though. But i am pretty sure that the answer is D bro.
" Literature enhances the adequacy of our ethical reflection and leads to more accepting, tolerant viewpoints as a consequence of readers being faced with an infinite range of characters, cultures and crises that they may not otherwise come into contact with."
* not my words!*
Hope this helps!
