1990 integra no start starter relay??/clutch switch??

my 1990 integra wont start and ive checked everything starter,fuel pump,distributor,spark plugs,ignition,main relay… the car wont crank over when i put the key in the ignition switch and turn the key with clutch pressed down plain silent nothing… ive done some research and some have said it can be the starter relay?? my question is if i can jump start my starter and it works would that be the starter relay?? like i would have someone press the clutch with the key in the ign. then i would jump the starter and it would start…how can i tell if its my clutch pedal switch or the starter relay?