单选题

下列代码的执行结果 var a = 1 function fn1() { ...

Question

下列代码的执行结果
var a = 1
function fn1() {
console.log(this.a)
}
const fn2 = ()=> {
console.log(this.a)
}

const obj = {
a: 10,
fn1: fn1,
fn2: fn2
}

fn1()
fn2()
obj.fn1()
obj.fn2()

A. 1 1 10 1

B. 1 10 10 10

C. 1 10 1 1

D. 1 1 1 10