Read the following context and choose the best option to answer the question.
Context: The secrets were his , and his alone . As he walked through the forest , he gripped his cloak and wrapped it tighter around himself , hiding the damaged metal body . He was an android , previously .
Question: What may be the reason for the secrets only being his ?
Options: 
- He only told a few people .
 - He actually does n't have any secrets .
 - He has n't told anyone his secrets .
 - He 's forgotten what his secrets are .


He has n't told anyone his secrets .