I need help with this script cause it aint workin

yall this code isnt working and i dont know why the c variable has an error and i need help

Your code so far

// Only change code below this line
var a = 5;
var b = 10;
var c + "I am a string!";
// Only change code above this line

a = a + 1;
b = b + 5;
c = c + " String!";

Your browser information:

User Agent is: Mozilla/5.0 (X11; CrOS x86_64 13505.111.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.152 Safari/537.36.

Challenge: Understanding Uninitialized Variables

Link to the challenge:

The plus sign + is for concatenating, to initialize you need the equal sign.

Also note that you have already been given " String!" so you don.t need to repeat.

thanks ill note that