The question is about identifying the characteristics of a passive voice construction. Option B is correct because the passive voice is formed with 'be' plus a past participle. Option A is incorrect because in the passive voice, the subject does not perform the action. Option C is partially correct but not the best answer because the focus on the recipient is a result of the passive construction, not a defining characteristic. Option D is incorrect because while the passive voice can be more complex, it is not always so.