My pick is A, because you put it first. Also it has a lot of land for growing food, and also, its closest to civilization so you can quickly get groceries when your dream of gardening inevitably fails.

B has a cool river, and old store building, but looks like it's close to a busy intersection. River isn't your property so can't easily use it for hydro power, etc. River could be a concern if floods are common.

C has irregular property shape and is way too close to the neighbors.