Which of the following infestation leads to malabsorption -: (A) Giardia lamblia, (B) Ascaris lumbricoides, (C) Necator Americanus, (D) Ancylostoma duodenale
Answer is A. Disease manifestations of giardiasis range from asymptomatic carriage to fulminant diarrhea and malabsorption.

Note: Ancylostoma duodenale also causes malabsorption, but only in children. On the other hand, Giardia causes malabsorption both in children as well as in adults.