Expression to count number of lines in a text layer

Hello!

I would like to have an expression on a Menu Dropdown controller, such that if

var text = thisComp.layer("Verse").text.sourceText.value;

has 1 lines of text, then the dropdown menu will be value 1, if it has 2 lines the menu will be value 2, and if the text has 3 lines it will be value 3. (The default vaule of the dropdown menu should be value 2.)

Is there a way to do this, where you reference how many lines a text layer has with an expression?

Thanks!