I would say probably B) The image of wild and lone.
Buuttt.. It could possibly be something different.. (Maybe C?)
Answer:
The central Idea is "For many reasons, notable people sometimes avoid revealing their private identity".
Explanation:
If you read the text the author clearly expresses his/her feeling based on that one topic. The main idea is implied. (are those multiple answers or a text I'm not sure)
Tiger, penguin, wolf and dolphin. Apply for me.
The Answer is... A
I'm glad to help :)