Final answer:
The len() function in Python returns the count of items in a list. For the given list alist with four items of different types, print(len(alist)) would output the integer 4.
Step-by-step explanation:
The list alist contains four items of different types: a string, a float, an integer, and another list. When you use the len() function in Python, it returns the number of items in a list.
Therefore, print(len(alist)) would output the number '4' since there are four elements in the list, regardless of their data types.