Select the correct answerWhat will be the output of the following Python code?import collectionsct=dict()ct=collections.defaultdict(int)print(ct[2])Options1An exception is thrown‘ ‘0

The correct answer is 0.

Here's the step by step explanation:

1. The collections module is imported. This module implements high-performance container datatypes (beyond the built-in types list, dict, and tuple) and contains many useful data structures that you can use to store information in memory.

2. A dictionary ct is created.

3. ct is then redefined as a defaultdict with int as the default factory. The defaultdict is a subclass of the built-in dict class. It overrides one method and adds one writable instance variable. The remaining functionality is the same as for the dict class and is not documented here. The default_factory is a function that provides the default value for the dictionary created. When int is used as default_factory, the default value is zero.

4. When you try to access a key that does not exist in the dictionary (in this case ct[2]), it does not throw a KeyError. Instead, it adds a new key with the value returned by the default_factory function. In this case, it's 0.

So, the output of the code will be 0.