Select the option that expresses the given sentence in active voice.

He is given proper guidance by his boss.

His boss gives him proper guidance.

The correct active voice of the given sentence "He is given proper guidance by his boss" is His boss gives him proper guidance.

The passive voice of the sentence is He is given proper guidance by his boss. This sentence is in the present tense, which is used to describe an action that is happening now. The passive voice of the sentence is formed by putting the subject of the active sentence after the verb "to be" and the past participle of the main verb. In this case, the subject of the active sentence is "he" and the main verb is "give." The past participle of "give" is "given." So, the passive form of the sentence is He is given proper guidance by his boss.

The active voice of the sentence is formed by putting the subject of the passive sentence before the verb and adding the word "by" before the agent. In this case, the subject of the passive sentence is "boss" and the agent is "he." So, the active form of the sentence is His boss gives him proper guidance.

The other options are incorrect because:

• His boss is giving him proper guidance. This sentence is in the present progressive tense, which is used to describe an action that is happening now but is not finished.
• His boss has been giving him proper guidance. This sentence is in the present perfect tense, which is used to describe an action that happened in the past and is still relevant to the present.
• He gives proper guidance to his boss. This sentence is in the active voice, but the subject of the sentence is "he," which is not the one who is giving the guidance.