A It is written in indirect speech because it reports something that was said or written by conveying what was meant rather than repeating the exact words.
B It is written in direct speech because it reports what someone has said or written by quoting his exact words.
C It is written in the passive voice because it indicates that the grammatical subject of the verb is the recipient and not the source of the action denoted by the verb.
D It is written in the active voice because it indicates that the grammatical subject of the verb is performing the action or causing the happening denoted by the verb.