At that point D's got degrees for me.That prof was a total weenie. It’s common for college courses to have optional finals - i.e., you will be get the grade you already earned if you don’t take the final, so the question was a legitimate one if that topic wasn’t clearly covered prior.
I think I needed an 8% or something on the final.
I already had my job lined up and it was not dependent on my GPA. I think I answered about 50% of the questions and turned it in. Passed the class and graduated.