Waren and Marshall hypothesis states that bismuth kills bacteria, thereby<span>healing gastritis and preventing ulcer relapse.</span>The Colloidal Bismuth Subcitrate (CBS) experiment provides evidence supporting Warren and Marshall's hypothesis because it showed that ulcer patients treated withbismuth had a substantially lower relapse rate than those treated with Tagamet.
Answer: d. Provide labor & buy goods
Answer:
The answer is d
Explanation:
but it seems as though the answer is in the question lol