Left sided superior vena cava drains into: (A) Right atrium, (B) Left atriurm, (C) Coronary sinus, (D) Pericardial space
Answer is C. Persistent left superior vena cava (PLSVC) is the most common variation of the thoracic venous system left sided svc drains into right atrium coronary sinus . <img src=" /> Image ref - researchate.net