A 46-year-old Caucasian male is being worked up for abdominal discomfort, loose stool and recent weight less. Intestinal biopsy is performed and periodic acid-Schiff (PAS) reaction is used on the sample (see the slide below). The intense pink discoloration demonstrated on the slide most likely indicates the presence of
A. Peroxidase
B. Calcium
C. Iron
D. Neutral lipid
E. Glycoprotein
F. Alkaline phosphatase

A. Peroxidase
B. Calcium
C. Iron
D. Neutral lipid
E. Glycoprotein
F. Alkaline phosphatase