A. connect and engage with your audience I think
Hello!
The correct answer is C. an antibiotic
"Physicians rely on drugs like ciprofloxacin and azithromycin for treating patients with severe disease...."
Based on that one sentence and the words in bold, you can tell that the answer is clearly not A, B, or D.
Also, I took the test just now and got the answer correct! :P
Hope I helped! <3
A large magnet. A magnet, regardless of type, is quite heavy. Especially if it's a rather dense one because it'll weight more because of more mass occupying a small space. It's a magnet because of the box's attraction to the steel table rather than concrete. Magnets attract metals instead of concrete.
by putting his head down of it