voldemorts daughter

" 5

He dragged me through the ally i could do anything to him right now but something was telling me not to but not listening to myself I yanked my hand away and said a spell to stop him from moving "OK now that the roles have been changed I want you to tell me why the back of your head said my name"
"No you can't do anything to me" he said with a grin
"You wanna bet crucio" he was screaming in pain "now tell me unless you want a death wish" all of a sudden I heard that voice again
"Let me see her" the back of his head said again he took off his purple thing to show me a face on his head
"Who are you"
" I am crystal" I said already knowing who he was
"Do you know who I am"
"Yes master your Tom Riddle or voldemort...... My father" to say he looked shocked
"I don't have children"
"My mother is lilly when you where together she got pregnant that's why she disappeared for 9 months"
"You will come with us and become a death eater I already have a task for you"I looked at him confused

Time laps

I was in this huge Mansion with my father and the guy that he is attached to its been two days since I been in diagon ally today I'm joining my father as one of his death eaters he still doesn't fully trust me I make my way up to my room to get ready I'm wearing a black shirt skinny jeans and convers I put on a little makeup and head down stairs to hear my dad say "my daughter will be joining the deatheaters" I took that as my que to walk in I went to the left of my father and bowed to him he stood saying the spell to give me the dark mark " now to prove your loyalty you will have to kill " I wondered who I had to kill the door opened and in came......
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Who do you think it should be

A:her best friend before she got moved

B:a Little boy/girl

C:a mudblood

Or if u can think of something else tell me