I know how to write and type "C#"
But, how is this put into spoken English words?

e.g. is it
"C pound"
"C hash mark"
"C number sign"
"C tic-tac-toe grid"
"C plus plus plus plus"
"C lattice work"
"C not equal to"
"C scratch that!"
"C (and a 4-letter word of the day, e.g "C #$%^&*")
"C with 2 short, parallel horizontal lines intersected by 2 short, nearly vertical parallel lines"
"See - if you can figure this out"

Inquiring (and confused) minds need to know. Thanks, DaveBo