Topic: Voice,

Best Answer Explained in Below-:

The sentence "All his pupils like him" conveys a current, ongoing state of affection from the pupils towards their teacher. To express this in passive voice, we focus on the action of liking rather than the subject performing the action. The correct transformation maintains the present tense and conveys a general truth.

Option C, "He is liked by all his pupils," accurately reflects this. The use of "is liked" indicates a passive present tense, meaning that the teacher is the recipient of the action (being liked) and it suggests that his pupils' affection is a continued and habitual state.

In contrast, Option A ("He was liked by all his pupils") shifts to the past tense, implying that the teacher was only liked at some point in the past, which does not capture the current sentiment.

Option B ("He is like by all his pupils") contains a grammatical error: it should be "liked" instead of "like," failing to convey the intended meaning.

Option D ("He is being liked by all his pupils") suggests a temporary state, which again doesn’t reflect the ongoing and habitual nature of the pupils’ affection.

Thus, Option C is the only choice that accurately represents the present and continuous nature of the liking relationship.