Choose the correct situations in which a works$-$cited entry might include a generic description, according to MLA style. Select all that apply.

In place of the title, when citing an object

Before the title of a blog post, when citing a comment on a blog

In place of the source title, when citing an untitled introduction to a book

In place of the author, when citing a source without an author

In place of the author, when citing a general discussion of a TV episode