The correct answer is: B. Chapter : Book
A sonnet is a type of poem, while a chapter is a part of a book. Just as a sonnet is a complete poem, a chapter is a complete unit of a book.
A lie is a false statement, while a falsehood is a statement that is not true. While a lie is a specific type of falsehood, not all falsehoods are lies. For example, a statement that is made in ignorance or by mistake is not a lie.
A murder is a crime of killing a person, while a crime is an act that is punishable by law. While all murders are crimes, not all crimes are murders. For example, theft is a crime that is not a murder.
A ballad is a type of poem, while a stanza is a group of lines in a poem. While a ballad is a complete poem, a stanza is not a complete unit of a poem. A stanza is simply a group of lines that are grouped together for structural or poetic reasons.