B. said the worst thing possible.
Isaiah 55:11 (NKJV)11 So shall My word be that goes forth from My mouth; It shall not return to Me void, but it shall accomplish what I please, and it shall prosper in the thing for which I sent it.
Just being there, to listen and to cry with the person is usually all a grieving person is seeking.
Send cards. In the initial days of loosing a loved one, a grieving person will receive cards, however, those cards stop within days after the funeral. It is a real comfort to receive a card weeks or even months after the loss.
For all who have lost someone, there may be a daunting task involving taking care of the loved one's personal things. Be available to help when they are ready to handle this task.