A nurse is assessing a client who is taking haloperidol and is experiencing pseudoparkinsonism. Which of the following findings should the nurse document as a manifestation of pseudoparkinsonism?

A. Smacking lips is associated with tardive dyskinesia, not pseudoparkinsonism. B. Serpentine (writhing) limb movement is characteristic of chorea or tardive dyskinesia, not pseudoparkinsonism. C. Pseudoparkinsonism is an extrapyramidal side effect (EPS) of antipsychotics like haloperidol. It mimics Parkinson's disease and includes shuffling gait, muscle rigidity, tremors, and bradykinesia. D. Nonreactive pupils are not a symptom of pseudoparkinsonism.