I would say, either, or, if not stated. The important thing is to keep to the publishers/agents submission guide lines. Some give very detailed ones, others are rather vague, some not at all, so you fall back on the basics, detailed in the link Meadowhawk gave.
Just be professional in your approach, you are in a way applying for a job/selling a product, and your submission is your CV/product list. Also remember a rejection is not personal, it is just business (Even if it makes you tear out your hair in chunks
)
To be honest the word count/formatting is the last thing I deal with. Getting the story written and edited to within an inch of its life is my first and main goal. The submitting of a manuscript is a long process, you can be sending off queries and requested sample chapters for a couple of years for just one novel. (I kid you not)