Declaring variables

Look at the code snippets below and select all correct ways to reassign a variable.

A)

var animal = 'dog';
var animal = 'bird';

B)

var animal = 'dog';
animal = 'bird';

C)

let animal = 'dog';
animal = 'bird';

D)

let animal = 'dog';
let animal = 'bird';

E)

const animal = 'dog';
animal = 'bird';