Schistosoma japonicum resides in -: (A) Vesical Plexus, (B) Splenic Vein, (C) Systemic Circulation, (D) Gall bladder
Answer is B. Habitat

S. hematobium: Vesicle plexus (veins of urinary bladder, pelvis ureter)
S. mansoni: Inferior mesentric plexus
S. japonicum: Superior mesentric plexus and its radicles (splenic vein).