Understanding Boolean onclick

Tell us what’s happening:

Your code so far

function welcomeToBooleans() {

// Only change code below this line.

return false; // Change this line

// Only change code above this line.

Your browser information:

Your Browser User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.181 Safari/537.36.

Link to the challenge:

What exactly do you not understand? The instructions or what a Boolean is?