Some random ugl. y person ask... person: R you sin. gal?
Me: who r you the sin. gal patrol
thats what you say if some random ugl. y person ask you that
but if you were that person what the hell will you say

I'd say

I'm sorry that is NONE of your concern please don't ask me something like that again

(I'd try being as kind as possible BUT if they try something then of course I'd be rude)

it would be a. that is the only one i could think of

how do you want this answered?