Read the following context and choose the best option to answer the question.
Context: Heather had really changed . She continued to be kind and she still had a bright smile on her face . However , because of Robbie she now knew the truth about herself .
Question: What might Robbie have doen to make heather knwo something about herself
Options: 
- He withheld information
 - He told her something about his past
 - He may have told a dark secret about her past
 - None of the above choices .


He may have told a dark secret about her past