单选题

functionside(arr){arr[0]=arr[2]}func...

Question

function side(arr) {
    arr[0] = arr[2]
}
function func1(a, b, c = 3) {
    c = 10
    side(arguments)
    console.log(a + b + c)
}
function func2(a, b, c) {
    c = 10
    side(arguments)
    console.log(a + b + c)
}
func1(1, 1, 1)
func2(1, 1, 1)

A. 12 12

B. 21 21

C. 12 21

D. 21 12