A nurse is collecting data from a client who has hypertension. The nurse should recognize that which of the following over-the-counter medications is contraindicated for this client?

A. This medication is a stool softener and is not contraindicated for hypertension. B. This medication is an expectorant and is not contraindicated for hypertension. C. Pseudoephedrine is a decongestant that can increase blood pressure and is contraindicated for clients with hypertension. D. Omeprazole is a proton pump inhibitor used to reduce stomach acid and is not contraindicated for hypertension.