Select the option that is the passive form of the given sentence.She did not forget me even though I have been away for a year.

• A. I was not forgotten by her even though I have been away for a year.
• B. Even though I have been away for a year she had not been forgotten.
• C. Even though I have been away for a year she did not forget me.
• D. Though I have been away for a year she has not forgot me.