A client diagnosed with a urinary tract infection (UTI) is prescribed sulfamethoxazole/trimethoprim. Which of the following conditions below would be a contraindication for this medication?

A. Uterine cancer: No known contraindications exist between this condition and sulfamethoxazole/trimethoprim. B. Client taking captopril for hypertension: Sulfamethoxazole/trimethoprim can increase potassium levels, and captopril (an ACE inhibitor) also raises potassium levels. Using these drugs together increases the risk of hyperkalemia, a dangerous condition. C. Osteoporosis: This condition does not contraindicate the use of sulfamethoxazole/trimethoprim. D. Multiple Sclerosis: No known contraindications exist for this condition with sulfamethoxazole/trimethoprim.