human
Question: A pharmaceutical company develops a new antibiotic to treat pneumonia. After limited testing, the researchers conclude that the antibiotic seems to be effective. How can the researchers strengthen their conclusions?

Choices:
A) Test the antibiotic on human volunteers.
B) Publish their results in a medical journal.
C) Ask an independent lab to retest the antibiotic.
D) Test the effectiveness of the antibiotic at killing other bacteria.
gpt
The correct answer is 2: Ask an independent lab to retest the antibiotic..