What score did I get?

I ended up getting a 65/66.

MCQ practice exam

I missed the one question because I didn't think about the third option. My friend had suggested that the third one could be possible, but I didn't take it into consideration and I was careless. I don't think that there's a concrete big idea that I need to improve on since it was just a silly mistake. I have attached a screenshot below.

MCQ practice exam