This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
Two hosts are required in -a) T. soliumb) E. histolytiocac) T. saginatad) Giardiae) Toxoplasma 
Select and explain. 
A. ace, B. bde, C. cde, D. ade
A: ace
Answer: A: ace 
Explanation: In case of T. solium: Definitive host: Man and intermediate—Pig and man
In Case of Entamoeba and Giardia infection: Only single host (man) required to complete life cycle.
In case of T. saginata: Definitive host: Man and intermediate—Cattle
In case of Toxoplasma: Definitive host: Cat and intermediate—Man and other mammals