This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cell Wall Synthesis Inhibitors, Subject name: Pharmacology
A female with 20 weeks pregnancy presents with fever and dysuria. A preliminary diagnosis of cystitis was made. Which of the following drugs will be safe to use for this patient? 
Select and explain. 
A. Ciprofloxacin, B. Gentamicin, C. Cotrimoxazole, D. Amoxicillin
D: Amoxicillin
Answer: D: Amoxicillin 
Explanation: Antibiotics safe in pregnancy P - Penicillin C - Cephalosporin M - Macrolides Ciprofloxacin causes cailage and bone destruction Gentamycin causes hearing loss in fetus Cotrimoxazole contains sulfonamides which can cause kernicterus in the child