Trouble summing across a line

Hello,

I need help with what I know is not too complex a problem.

Essentially, I have 3 columns, and I want to sum/count '1' if a certain row satisfies three separate criteria. For example, If column A is X [and] Column B is Y [and] Column C is Z, '1'. If not, '0'.

Any ideas? I return '0' in every instance when using sum/sumifs.

Thanks.