Thanks to all who responded. I will try to answer in one message.
I did not add these facts to RM. I assume that they got in there as a result of the GEDCOM importation of my database from my previous software, during which I made no specific choices of which items to add, nor was I offered any alternatives.
I went to Lists>Fact Types, selected Current Marital Status and Delete. It seemed to work, although I haven't tested it yet by adding a new person.
Next, I selected Description and Delete. I got a pop-up window which stated "Built-in fact type can't be deleted." It seems odd to me that Description would be a fact which I am forced to either use or delete person by person, as I would think that it is rarely used by anyone, at least from the standpoint of entering a physical description of a person -- something that is usually unavailable for 90+% of our ancestors. Perhaps I don't understand what else it could be used for. At any rate, I then selected Description and Edit. I found the checkboxes which I can deselect to prevent this fact from being included in various outputs. So, I have found a solution to my main problem.
Thanks again for your suggestions.