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 of the following is true with Giardia lamblia- 
Select and explain. 
A. Malabsorption commonly seen, B. Trophozoite forms is binucleate, C. Diarrhea is seen, D. Jejunal wash fluid is diagnostic
B: Trophozoite forms is binucleate
Answer: B: Trophozoite forms is binucleate 
Explanation: Trophozoites is bilaterally symmetrical I.e all the organs of the body are paired and hence there are two axostyles ,two nuclei ,four pairs of flagella and two parabasal bodies present on axostyles (refer pgno:31 baveja 3 rd edition)