Which of the following about the passive voice is true?
选项：

A:“Be given” is a passive voice structure.
B:The subject of a sentence or clause featuring the passive voice typically denotes the recipient of the action (the patient) rather than the performer (the agent).
C:The passive voice in English is formed periphrastically: the usual form uses the auxiliary verb be (or get) together with the past participle of the main verb.
D:The passive voice is a grammatical construction.