What keystrokes does 'C-p' mean in 'info' utility?

Using H within info there are a series of options like 'C-n' ('next-line') (an arrow key) Move the cursor down to the next line. 'C-p' ('prev-line') (an arrow key) Move the cursor up to the previous line. But I am not sure how to invoke them with keystrokes. I tried Shift+C then the next character (i.e Shift+C+p) but that did not work. Also tried C followed quickly by p . . . Basic question - but have not yet found much direction.