Sentences with ??? are wordier because they have an additional helping verb and sometimes the word by. Sentences with ??? are more clear and concise.
passive voice
active voice
Sentences in the passive voice are wordier because they contain an additional helping verb (usually "is," "are," "was," or "were") and sometimes the word "by." For example, "The book was read by Sarah" is in the passive voice.
On the other hand, sentences in the active voice are more clear and concise, as there is no need for an additional helping verb or the inclusion of "by." For instance, "Sarah read the book" is in the active voice.