Plants and shroom ID

I have a few plants growing in my yard that i would like to identify before I kill them out in lieu of known edibles. For reference, I live near St. Louis, MO.

Plant A is a hairy, woody vine that has a pole habit and shoots toward the tops of the trees or fence it is closest to. My hunch is that is poison ivy/oak, but I am not sure.



Plant B is a "pretty bush" that my wife would like to keep. We are just curious as to its name. In the late summer/early fall it bears a small red berry.






Plant C is an annual that covers our shaded grounds. It grows to about 30 inches tall in by late May, then by late June it wilts away.



Fungi A grew near the base of one of my raspberry plants... I *think* it is a morel, but am not about to try to it.




Any help is appreciated.

I would say that plant 'A' is Virginia Creeper, plant 'B' is flowering quince, and for plant 'C', the leaves look like stinging nettle, but I'm not sure about the flower (I've never seen it in person). Has anyone else replied to your ID request?

#3 is Garlic Mustard ( small white flowers). It's a very good wild edible. If you crush the leaves it will smell like garlic.

Check and see if the mushroom is hollow, that is a good indication of a true morel.

Here is a guide to identifying morels, consider yourself lucky if they are the true morels, they are quite delicious!
http://www.mushroom-appreciation.com/morel-mushroom.html