Challenge 1 / 1

Which of these is NOT a valid way to initialize a data object in Vue?

data: {
    legend: "My Legend Goes Here!",
},

data: function() {
    const legend = "My Legend Goes Here!;
},

data() {
    return {
        legend: "My Legend Goes Here!",
    };
},

data: () => ({
    legend: "My Legend Goes Here!",
}),