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: Anatomy
True about prostatic urethra are all except: 
Select and explain. 
A. Trapezoid in cross-section, B. Presence of verumontanum, C. Opening of prostatic ducts, D. Contains urethral crest
A: Trapezoid in cross-section
Answer: A: Trapezoid in cross-section 
Explanation: Trapezoid in cross sectionProstatic urethra is semilunar (transversely arched) in cross-sectionIn transverse section- Preprostatic pa --> Stellate (star shaped)- Prostatic pa -->Transversely arched (semilunar)- Membranous pa --> Stellate- Bulbar & penile -->Transverse- External orifice -->Sagittal