Ulcers are caused by all of the following EXCEPT ________.
A. stress
B. drugs
C. excessive hydrochloric acid
D. nausea and vomiting
Answer:D
Ulcers are caused by all of the following EXCEPT ________.
A. stress B. drugs C. excessive hydrochloric acid D. nausea and vomiting
Explanation: A) Stress can cause an ulcer.