A quick quiz question on javascript scoping. Try and figure this out before executing in browser

If you were to create this object:

var person = {
    name: 'Dave',
    weight: 100,
    height: 180,
    calculateBMI: function() {
        console.log(this);
        function innerFunction() {
            console.log(this);
        }
        innerFunction();
    }
}

When running person.calculateBMI() what object will this be mapped to when logged by the innerFunction?