Which of the following about the passive voice is true？

Which of the following about the passive voice is true？
A.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）.
B.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.
C.“Be given” is a passive voice structure.
D.The passive voice is a grammatical construction.
正确答案：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）.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.“Be given” is a passive voice structure.The passive voice is a grammatical construction.