Who among the following has authored the famous novel ‘To kill a mockingbird’?

Harper Lee

The correct answer is Option (3) - Harper Lee

"To Kill a Mockingbird" is a renowned novel authored by Harper Lee. Set in the fictional town of Maycomb, Alabama, during the 1930s, it explores themes of racial injustice and moral growth through the perspective of a young girl named Scout Finch. The novel is celebrated for its powerful portrayal of social issues and its memorable characters.