Consider the following code snippet:

x $=[[1,2,3],[4,5,6]$

Y$=[[-1,-2,-3],[-4,-5,-6]]$

z $=[$val for val in x$]+[$val for val in y$]$

x $[01[0]=10$

Y$[$O$]$O$]=-10$

Which of the following statements is true?

Group of answer choices

The changes to x and y on lines $4-5$ affect z because y and x are contained in the list z$.$

The changes to x and y on lines $4-5$ do not affect z because the list z is a new list created with values in lists x and y$.$

Line $3$ is a syntax error, because x and y are not numbers.

The changes to x and y on lines $4-5$ affect z because the list z is a new list created by copying the references in lists x and y$.$