Can someone explain me Why the output is 5? I got it in the py challenge

Question

test = [2,4,6,9,11]
x=len(test)
test.append(x)
print(test[5])

Answer 1

Mahmuda Akter Moon

because it print the length of test array before it was appended at fifth index position ^^

(indexes start at 0)

Answer 2

x=len(test)=5

#add 5 in list test:
test.append(5)

list test now:
test[0]=2
test[1]=4
test[2]=6
test[3]=9
test[4]=11
test[5]=5

Answer 3

got it..