It was me who asked that question, wasn't it / wasn't I / didn't I?

What should I say at the end? I always use "right?" as a question tag when I'm not sure, but here I feel I can use a normal question tag...

Thanks Emotion: smile
It was > wasn't it

I asked that question, didn't I?
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Consider also,

I'm the one who ..., aren't I?

Ok, thanks Emotion: smile
The grammatically correct sentence is : "I was I who asked....?" and the question tag will be 'wasn't I?'
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