This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: parasitology, Subject name: Microbiology
Which is true of trophozites of E. Histolytica - 
Select and explain. 
A. Has eccentric Karyosome, B. Nuclear membrane with chromatin, C. Shows erythrophagocytosis, D. Presence of bacteria inside cell
B: Nuclear membrane with chromatin
Answer: B: Nuclear membrane with chromatin 
Explanation: TROPHOZOITE- 1.clear outer ectoplasm and granular endoplasm 2.only form present in tissues 3.karyosome present-central in position surrounded by coloured halo TEXTBOOK OF MEDICAL PARASITOLOGY,BAVEJA,3RD EDITION,PAGE NO 16