An action in a sentence can be represented in two ways, namely active and passive voice.

The passive voice always uses the past participle form of the main verb irrespective of any tense. Only the auxiliary verbs depend upon the sentence given in the active voice.

The correct answer is A)Have all the people been affected by the price rise?

The option A is correct as the given sentence is in the active voice and to transform it into the passive voice, the subject of the given sentence(the price) comes in the place of the object(all the people) and vice versa. Also, as the sentence is in the present perfect tense, 'been' is added after the subject of the transformed sentence.

Options B, C, and D are wrong as the given sentence is in the present perfect tense, 'being' cannot be used and the given sentence is not in the simple past tense respectively.