One of the following 10 statements generates an error. Which one? (Your answer should be a number between 1 and 10.)

Question

x = [[7,8],3,"hello",[6,8],"world",17] # Line 1
z = [x[0],x[3]] # Line 2
y = x[0:50] # Line 3
w = x # Line 4
w[0][1] = 7 # Line 5
a = z[0][1] + z[1][1] # Line 6
x[0] = "ping" # Line 7
y[2] = y[2][1] + y[4][2] # Line 8
y[0][1] = 7 # Line 9
w[0][1] = 7 #line 10

Answer 1

line 3

Answer 2

I think its line 10

Answer 3

Ty