Suppose The novel "To Kill a Mockingbird" by Harper Lee was published in 1960 and won the Pulitzer Prize for Fiction in 1961. The book tells the story of Atticus Finch, a lawyer in the fictional town of Maycomb, Alabama, who defends a black man falsely accused of raping a white woman. The novel deals with themes of racial injustice and moral growth.
Can we infer that "Harper Lee was a pseudonym for a group of writers"? Yes, no, or maybe?