@Bolded text...what?
They didn't say what kind of processor. they just said the speed. for all we know Option A is a overclocked 286, or it could be an overclocked quad core.
Like I said, I'd probably go with neither anyway, depends who it's from. People giving away free computers like that (without trying to sell them) sets off alarm bells in my head of "stolen merchandise" that they are trying to offload.