Girls, Is it mam, mum or mom?

I recently chanced upon a local news article about a debate on whether people thought mam or mum was the proper familiar term for mother. (Here in Wales where spellings change from village to village such arguments aren't that unusual).
The article. Warning full of ads and pretty boring
Mam and mum are common throughout the UK, mam is often shorten to ma' by the criminal classes and the American mom isn't popular.
But what's most common in your neighbourhood/family?
Mam
Mum
Ma'
Mom
Other, tell us
Select gender and age to cast your vote:
Updates
+1 y
Sorry guys. I messed up asking this question, didn't mean to exclude you.
Girls, Is it mam, mum or mom?
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