Select the correct statements about the code below.

def animal$\_$noise$($what$)$:

if what $==$ "cow":

return "mool"

if what $==$ "dog":

return "woof!"

else:

return "I don't know that animal."

The function prints animal noises.

The function assumes the what argument is of type str$.$

If $x=$ animal$\_$noise$("$dog$"),$ then $x$ will be 'woofl!

if $x=$ animal$\_$noise$("$DOG$"),$ the function will not return any value.

'cow', 'dog', 'Mool,$\text{'}$ 'Woofl", and "I don't know that animal." are all literals of type str$.$