I've got the 3HM model and the dip stick only shows the high/low mark. After completely draining oil after a recent oil change, I did what Ray suggested above and after adding the specified amount of new oil, the dip stick read between high/low mark. I would go with answer "A".
What type of oil do you use? I'm partial to the Shell Rotella brand 30 HD for diesels.
PSC 34 # 201