[pitt1980]

are you positive that B and D are rule out A and C?

maybe a slight more productive way to have these conversations would be

"I thought about A, it didn't seem like a good idea to me because of B, what do you think? Am I thinking about this wrong? Is there some reason why B doesn't prevent A from being a good idea?"

subtle difference, but it signals that you value their input and ideas, and leaves open the possibility of you learning new things about your problem

(if you don't value their input and ideas, perhaps you shouldn't share your problems with them)