I think the most logical answer from my research is option c.
I'm not sure, but I tried.
Check out this website: http://www.notablebiographies.com/Ch-Co/Chaplin-Charlie.html .
It's really detailed and might help you find answers to your question.
The number 85 is a composite number. To understand really, we need to know what are prime and composite numbers. A prime number is a natural number that has no other divisor only 1 and the number itself. On the other hand, composite number is a number that can be divided evenly by numbers other than 1 and itself and this is where 85 falls. 85 can divided evenly by 5 and 17.