hard20 pts · first answer countsjavascriptobjects

Order of object keys

What does this print?

const o = { b: 1, 2: 1, a: 1, 1: 1 }
console.log(Object.keys(o))

A.['b', '2', 'a', '1']B.['1', '2', 'b', 'a']C.['a', 'b', '1', '2']D.['b', 'a', '1', '2']