Question

a corn farmer has a new machine to pick corn. how will the quantity he supplies change ?

Answer 1

The supply will now increase, as the machine is technically more efficient, and can produce more output.

Answer 2

Who says the machine is more efficient or produces more output?

Answer 3

it doesn't say that, but probably they just want to let you see that if there's an extra machine (maybe not more efficient) that the quantity will increase, because there's more input XD