This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
The drug of choice for the treatment of gonorrhoea in a pregnant patient allergic to beta-lactum antibiotics is - 
Select and explain. 
A. Piperacillin, B. Ceftiiaxone, C. Spectinomycin, D. Ciprofloxacin
C: Spectinomycin
Answer: C: Spectinomycin 
Explanation: None