Job interview - what should I wear?

Hello everyone, I have a job interview coming up soon at a farm. I applied for a delivery driver position which is 8 hours a day, so the only work I do on the farm is load the van. Anyway, I was wondering if I should wear formal type clothes or just nice pants and a nice shirt. My mom said to just wear nice pants and a nice shirt since it’s a farm but not sure if that would be appropriate. This is my first interview ever so I want to make sure I am dressed appropriately. Thanks for reading

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