The new sentence, Lion cubs are born with spots, but they lose their spots by the third month, is an example of a COMPOUND VERB.
Compound verb are verbs used in a sentence by a single subject.
The subject in the sentence is LION CUBS.
The compound verbs in the sentence are ARE BORN and LOSE.
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 options? I just learned about direct characterization so I'm able to help