Irritable bowel syndrome is a(n): A. chronic disease ...

[strangeaffliction]

Irritable bowel syndrome is a(n):
 
  A. chronic disease characterized by periodic disturbances of diarrhea and constipation with-out clear physical damage
  B. lack of the enzyme lactase in the small intestine, which causes symptoms of gas produc-tion when dairy foods are consumed
  C. erosion in the wall of the stomach, duodenum, or any other part of the GI tract exposed to gastric juice
  D. syndrome affecting the intestines that is characterized by a wide range of symptoms and conditions ranging from diarrhea to ulcerative colitis and Crohn's disease

Question 2

A physician who has the letters O.D. after his name is a Doctor of ________.
 
  Fill in the blank(s) with correct word

[Brenm]

Answer to Question 1

A

Answer to Question 2

Optometry

[strangeaffliction]

Thanks for the timely response, appreciate it

[AngeliqueG]

Great answer, keep it coming