Which of the following statements are true?

Select all that apply:

The values inside a dictionary must be unique within a dictionary.

If the given key is found in the dictionary, the pop method removes the key and its corresponding value from the dictionary and returns the value.

A value associated with a key in a dictionary can be an object of any type.

Dictionaries can be indexed by mutable objects.

The keys inside a dictionary are unique within that dictionary.

A list whose elements are immutable can be used as keys in a dictionary.