FAFSA Application: Better to enter parents as separated or married?

Im currently filling out the federal financial aid application, FAFSA.

For those who know about this stuff…

My parents are separated (but still legally married). They live in separate states. But my Mom is the only source of income. My dad doesnt make any money. But my mom still supports him by giving him money to live off of. Which way is the best way to put this on my form (while, of course being truthful) to get the most scholarships?

Thanks!!