Too many arguments for this function

I am trying to get one of 3 Results to appear in a cell based on information from another worksheet:
I keep getting an error message that states "You have enterred too many arguments for this function"
I have written formuls before with 3 statements I am not sure what I am doing wrong.

=IF(And(worksheet!C18 = "X", worksheet! K13>worksheet!L13),"Result A","Result B",
IF(And(worksheet!C19 = "X", worksheet!M13>worksheet!L13),"Result A,"Result B",
IF (And(worksheet!C20 = "X",worksheet!N13>Lworksheet!13),"Result A", Result C" ))))

You tried to list 3 outcomes in the if statement.

I am not clear what you mean? I have written formulas like this before and it works. Should I write it as a Case statement?

If statements allow only 2 outcomes, You wrote in 3.

Maybe you meant something like this?

=IF(And(worksheet!C18 = "X", worksheet! K13>worksheet!L13),"Result A", IF(And(worksheet!C19 = "X", worksheet!M13>worksheet!L13),"Result A", IF(And(worksheet!C20 = "X",worksheet!N13>Lworksheet!13), "Result A", "Result C" )))

martindwilson and JamesatOWL thank you both sooo much, removing one of the results worked
Thank You !!