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
Complicated UTI includes: 
Select and explain. 
A. UTI without underlying renal/neurologic disease, B. UTI with underlying structural, medical, neurologic disease, C. > 3 Symptomatic UTIs within 12 months following clinical therapy, D. Recurrent UTI caused by a different pathogen at any time
B: UTI with underlying structural, medical, neurologic disease
Answer: B: UTI with underlying structural, medical, neurologic disease 
Explanation: → Uncomplicated: UTI without underlying renal/neurologic disease. 
→ Complicated: UTI with underlying structural, medical, neurologic disease. 
→ Recurrent: >3 Symptomatic UTIs within 12 months following clinical therapy. 
→ Reinfection: Recurrent UTI caused by a different pathogen at any time. 
→ Relapse: Recurrent UTI caused by same species causing original UTI, within 2 weeks after therapy.