Explanation yeah what is it?
A clinical trail
Clinical trials are research studies that explore whether a medical strategy, treatment, or device is safe and effective for humans. These studies also may show which medical approaches work best for certain illnesses or groups of people. - Definition by <span>https://www.nhlbi.nih.gov/studies/clinicaltrials</span>
Answer:
southwestern part of the United States
California, Nevada, Wyoming, Utah, Colorado, New Mexico, and Arizona
B is the correct answer.
Civil Service Reformers were led by people such as Theodore Roosevelt and others who fought against patronage systems in the mid to late 1800s.
