Answer:
A
Step-by-step explanation:
If you were to use simple sentences it would be like your talking to kinder garden kids but your not in this case, so without sounding unnatural you will do a formal tone, not robotic sounding either. If you used advanced vocabulary some might not even know what your talking about. If you use famous quotes people may or may not know it and those who may not know will say " Oh, she/he made that up." or "What is she/he talking about?"