What will be the output of `print(['Hello'] * 3)` in Python?

• A. 3 Hello
• B. ['Hello', 'Hello', 'Hello']
• C. Error due to syntax
• D. ['Hello', 3]

Answer: (B)

The output of the code print(['Hello'] * 3) in Python will be a list that contains the string 'Hello' repeated three times. When the multiplication operator is used with a list and an integer, Python replicates the elements in the list by the specified number.

In this case, the list with a single element, which is the string 'Hello', is multiplied by 3, resulting in a new list that consists of three copies of the 'Hello' string. Thus, the output will be ['Hello', 'Hello', 'Hello'].

This illustrates an important concept in Python dealing with sequences (like lists) where multiplying a list by an integer effectively expands it by duplicating its contents. The other choices do not match this functionality in Python and are therefore not applicable in this case.