Final answer:
It is best to avoid giving c) Ciprofloxacin and d) Trimethoprim-sulfamethoxazole to a pregnant woman with a UTI due to potential risks to the fetus. Amoxicillin and Nitrofurantoin are generally considered safe to use during pregnancy.
Step-by-step explanation:
When considering antibiotics to prescribe for a pregnant woman with a UTI, one should be cautious as certain antibiotics may have harmful effects on the developing fetus. Of the options given, it is best to avoid giving c) Ciprofloxacin and d) Trimethoprim-sulfamethoxazole to a pregnant woman due to potential risks to the fetus. Amoxicillin, option a), is generally considered safe to use during pregnancy. Nitrofurantoin, option b), is also commonly used to treat UTIs in pregnant women as it has a low risk of fetal harm.