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 C)I don't like being kept waiting by people.

Option C 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 (people) comes in the place of the object(me) and vice versa. Also, as the sentence is in the present continuous tense, 'being kept waiting' is used.

Options A, B, and D are wrong as 'being' is missing, the meaning of the sentence is different from what is given, and 'people' is not at its place respectively.