The correct option is C Hookworm
Hookworm infection may be associated with a skin reaction (dermatitis), an increase of eosinophils, a pulmonary reaction (pneumonitis), and skin rash. Gastrointestinal symptoms include mild abdominal pain, nausea, vomiting, and anorexia. iron-deficiency anemia is due to the blood loos often associated with hookworm infection.
Thus, the correct answer is option (C), 'Hook worm'.