Blower motor,is it the A/C Blower resistor or the Blower cut-out relay?

What is your question?

I have no low speed,mid speeds only high speed on the blower. The resistor I removed and it had rusty connections on the electrical exterior,but the resistors weren't burned. The cut out relay is located just above the resistor but I am a layman,not a mechanic.How can this be resolved without buying both pieces,can these 2 items be tested somehow?Or is there something else that might make the blower not work except on high only?