Pathology Transitional cell carcinomas can be caused by -a) Napthylamineb) Smokingc) Bilharziasisd) Betel nut A abc B bc C acd D bcd 💡 Explanation Transitional cell carcinomas can be caused by -a) Napthylamineb) Smokingc) Bilharziasisd) Betel nut ✓ Correct Answer: A. abc