I think it's generally good to always do both, on both sides. If you're asking, start with what you want, and then a why. If you're answering, I'm not sure the

I think it's generally good to always do both, on both sides. If you're asking, start with what you want, and then a why. If you're answering, I'm not sure the order is as important, but starting with whichever is shorter is probably a safe general rule.