A 25-year-old female presents to the ED with a complaint of dysuria and nausea. She is 6 weeks pregnant by dates. Her evaluation indicates that she has a simple urinary tract infection (UTI). Which of the following medications is not safe in pregnancy?
(A) Cephalexin.
(B) Ciprofloxacin.
(C) Nitrofurantoin.
(D) Metoclopramide.