Possible Fuel pump/Filter

My 01 civic all of a sudden decided to stop starting. The starter turns over but the engine wont start. I'm thinking it's the fuel pump or fuel filter. Are these easy to change and where are they?

Could it be another problem?

Thank you

Under the seat in the back. Be careful taking it out. You have to move it around just right to get it to come out.

Can you hear the pump buzzing/humming a few seconds when 1st turning the key to II and not attempting to start ??

Spray carb cleaner in the throttle body and try to start it , if it starts it a feul problem and if it wont start its probly electrical