I will keep my fingers crossed for you that your broccoli is #B :-)

I'm not really sure of exactly how much direct sun that broccoli plants need to really survive. I do know that if I cover mine with some plastic on nights that it freezes (not very often down here on the Gulf Coast) they do quite well thru the winter months.

Here is a link that might be useful: Ft2Garden.com

The Brocs I transplanted in late August kept on producing up until it hit the teens last week. I probably could have left them in the ground to see if they would revive but composted them. Usually they are goners by early Dec here but this was the longest harvest yet.
If you leave them to over winter they may just bolt in the spring and produce rapidly blooming heads to set seed.

Well, they've taken teen temperatures a few times already. At first they shrivel up and get really dark green, but as soon as the temps hit the mid 20's they perk right back up. I've read they can take up to 10 degrees F. If that's really the case then I have a good chance of them surviving all frosts to come. It only somewtimes goes below 10 degrees here, but averages in the mid 20's for nighttime temps.